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  <xs:element id="wdq_RedeemablePreferredNoncontrollingInterestMember" abstract="true" name="RedeemablePreferredNoncontrollingInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_RedeemableNoncontrollingInterestMember" abstract="true" name="RedeemableNoncontrollingInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_FinancingReceivableAfterAllowanceForCreditLossVariableFeeComponentNoncurrent" abstract="false" name="FinancingReceivableAfterAllowanceForCreditLossVariableFeeComponentNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_AccruedCapitalExpensesCurrent" abstract="false" name="AccruedCapitalExpensesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RenewableNaturalGasFuelSupplySegmentMember" abstract="true" name="RenewableNaturalGasFuelSupplySegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_FuelStationServicesSegmentMember" abstract="true" name="FuelStationServicesSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_RenewablePowerSegmentMember" abstract="true" name="RenewablePowerSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_InterestAndFinancingExpenseNet" abstract="false" name="InterestAndFinancingExpenseNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EarningsPerShareBasicAndDilutedEPSAbstract" abstract="true" name="EarningsPerShareBasicAndDilutedEPSAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest" abstract="false" name="ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OtherComprehensiveIncomeLossNetOfTaxAttributableToNonredeemableNoncontrollingInterest" abstract="false" name="OtherComprehensiveIncomeLossNetOfTaxAttributableToNonredeemableNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ComprehensiveIncomeLossAvailableToCommonStockholders" abstract="false" name="ComprehensiveIncomeLossAvailableToCommonStockholders" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_IncreaseDecreaseInTemporaryEquityAndRedeemableNoncontrollingInterestRollForward" abstract="true" name="IncreaseDecreaseInTemporaryEquityAndRedeemableNoncontrollingInterestRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_TemporaryEquityIncreaseFromStockBasedCompensation" abstract="false" name="TemporaryEquityIncreaseFromStockBasedCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TemporaryEquityIncreaseFromDividendDistributionRedeemablePreferredNonControllingInterests" abstract="false" name="TemporaryEquityIncreaseFromDividendDistributionRedeemablePreferredNonControllingInterests" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TemporaryEquityDistributionsToRedeemablePreferredNoncontrollingInterestHolders" abstract="false" name="TemporaryEquityDistributionsToRedeemablePreferredNoncontrollingInterestHolders" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TemporaryEquityIncreaseFromDividendDistribution" abstract="false" name="TemporaryEquityIncreaseFromDividendDistribution" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TemporaryEquityDistributionsToRedeemableNoncontrollingInterestHolders" abstract="false" name="TemporaryEquityDistributionsToRedeemableNoncontrollingInterestHolders" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ForfeitureOnSharesIssuedWarrantExchange" abstract="false" name="ForfeitureOnSharesIssuedWarrantExchange" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_TreasuryStockSharesAcquiredFairValue" abstract="false" name="TreasuryStockSharesAcquiredFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_TreasuryStockValueAcquiredFairValue" abstract="false" name="TreasuryStockValueAcquiredFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EquityMethodInvestmentNumberOfEntitiesDeconsolidated" abstract="false" name="EquityMethodInvestmentNumberOfEntitiesDeconsolidated" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_LossOnExchangeOfWarrants" abstract="false" name="LossOnExchangeOfWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_PaidInKindInterestIncome" abstract="false" name="PaidInKindInterestIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_UnrealizedGainLossOnConvertibleNotesPayable" abstract="false" name="UnrealizedGainLossOnConvertibleNotesPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_IncreaseDecreaseInPartsInventories" abstract="false" name="IncreaseDecreaseInPartsInventories" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_PaymentsToPurchaseSharesUponExerciseOfPutOption" abstract="false" name="PaymentsToPurchaseSharesUponExerciseOfPutOption" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RepaymentsOfLongTermConstructionLoan" abstract="false" name="RepaymentsOfLongTermConstructionLoan" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RepaymentsOfEquipmentLoans" abstract="false" name="RepaymentsOfEquipmentLoans" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ProceedsFromNonredeemableNoncontrollingInterest" abstract="false" name="ProceedsFromNonredeemableNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ProceedsFromNoncontrollingInterestJointVenturePartnersRedeemable" abstract="false" name="ProceedsFromNoncontrollingInterestJointVenturePartnersRedeemable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_NoncashDividendsRedeemablePreferredNonControllingInterestsPaidInKind" abstract="false" name="NoncashDividendsRedeemablePreferredNonControllingInterestsPaidInKind" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_NoncashAssetRetirementObligationAccrualIncludedInPropertyPlantAndEquipment" abstract="false" name="NoncashAssetRetirementObligationAccrualIncludedInPropertyPlantAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_NoncashRightOfUseAssetFromModificationOfLease" abstract="false" name="NoncashRightOfUseAssetFromModificationOfLease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ScheduleOfStartUpActivitiesCostTableTextBlock" abstract="false" name="ScheduleOfStartUpActivitiesCostTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wdq_SponsorLetterAgreementMember" abstract="true" name="SponsorLetterAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ClassBOrdinaryShareMember" abstract="true" name="ClassBOrdinaryShareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OpalFuelsMember" abstract="true" name="OpalFuelsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ReverseRecapitalizationPercentageOfCommonStockSubjectToVestingAndForfeitureConditions" abstract="false" name="ReverseRecapitalizationPercentageOfCommonStockSubjectToVestingAndForfeitureConditions" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_ReverseRecapitalizationCommonStockSubjectToVestingAndForfeitureConditionsPeriod" abstract="false" name="ReverseRecapitalizationCommonStockSubjectToVestingAndForfeitureConditionsPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_DerivativeInstrumentContingentConsiderationLiabilityShares" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_BusinessCombinationDeconsolidationAndEquityMethodInvestmentsGainLossAmount" abstract="false" name="BusinessCombinationDeconsolidationAndEquityMethodInvestmentsGainLossAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RestrictedCashCurrentDebtReserve" abstract="false" name="RestrictedCashCurrentDebtReserve" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RestrictedCashCurrentDepositOnInterconnectionPayments" abstract="false" name="RestrictedCashCurrentDepositOnInterconnectionPayments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_SiteLeaseExpense" abstract="false" name="SiteLeaseExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_VirtualPipelineExpense" abstract="false" name="VirtualPipelineExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_NextEraMember" abstract="true" name="NextEraMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OCIFuelsB.V.OCIMember" abstract="true" name="OCIFuelsB.V.OCIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_NaturalGasRenewableMember" abstract="true" name="NaturalGasRenewableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_EnvironmentalAttributesMember" abstract="true" name="EnvironmentalAttributesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_EnvironmentalCreditsMember" abstract="true" name="EnvironmentalCreditsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_RenewableNaturalGasFuelSupplySegmentAndFuelStationServicesSegmentMember" abstract="true" name="RenewableNaturalGasFuelSupplySegmentAndFuelStationServicesSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_LowCarbonFueldStandardLCFSMember" abstract="true" name="LowCarbonFueldStandardLCFSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_NumberOfNaturalGasProducers" abstract="false" name="NumberOfNaturalGasProducers" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_SupplyCommitmentPlanToSellMinimumPercentage" abstract="false" name="SupplyCommitmentPlanToSellMinimumPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_AgreementTermOfContract" abstract="false" name="AgreementTermOfContract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_NumberOfWhollyOwnedSubsidiaries" abstract="false" name="NumberOfWhollyOwnedSubsidiaries" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_PurchaseAndSalesAgreementTermOfContract" abstract="false" name="PurchaseAndSalesAgreementTermOfContract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_NumberOfFacilities" abstract="false" name="NumberOfFacilities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_RevenuePercentage" abstract="false" name="RevenuePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_EnvironmentalCreditsHeldForSale" abstract="false" name="EnvironmentalCreditsHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RenewablePowerSalesMember" abstract="true" name="RenewablePowerSalesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ThirdPartyConstructionMember" abstract="true" name="ThirdPartyConstructionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_BrownGasMember" abstract="true" name="BrownGasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_PartsMember" abstract="true" name="PartsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OtherProductsAndServicesMember" abstract="true" name="OtherProductsAndServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_FuelPurchasingAgreementsMember" abstract="true" name="FuelPurchasingAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_NumberOfAgreements" abstract="false" name="NumberOfAgreements" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_NumberOfFuelStations" abstract="false" name="NumberOfFuelStations" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_GainLossOnTransfersOfNonFinancialAssetsAccountedForAsSale" abstract="false" name="GainLossOnTransfersOfNonFinancialAssetsAccountedForAsSale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ContractWithCustomerAssetAfterAllowanceForCreditLossCostAndEstimatedEarningsInExcessOfBillingsCurrent" abstract="false" name="ContractWithCustomerAssetAfterAllowanceForCreditLossCostAndEstimatedEarningsInExcessOfBillingsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ContractWithCustomerAssetAfterAllowanceForCreditLossRetainageCurrent" abstract="false" name="ContractWithCustomerAssetAfterAllowanceForCreditLossRetainageCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ContractWithCustomerLiabilityBillingsInExcessOfCostsAndEstimatedEarningsCurrent" abstract="false" name="ContractWithCustomerLiabilityBillingsInExcessOfCostsAndEstimatedEarningsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TwoCustomersMember" abstract="true" name="TwoCustomersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ThreeCustomersMember" abstract="true" name="ThreeCustomersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OneSupplierMember" abstract="true" name="OneSupplierMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_PineBendMember" abstract="true" name="PineBendMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_NobleRoadMember" abstract="true" name="NobleRoadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_GREPBTBHoldingsLLCGREPMember" abstract="true" name="GREPBTBHoldingsLLCGREPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_SJILandfillRNGLLCSJILRNGMember" abstract="true" name="SJILandfillRNGLLCSJILRNGMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ParagonMember" abstract="true" name="ParagonMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_IncreaseDecreaseInEquityMethodInvestmentsRollForward" abstract="true" name="IncreaseDecreaseInEquityMethodInvestmentsRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_EquityMethodInvestmentIncomeLossGross" abstract="false" name="EquityMethodInvestmentIncomeLossGross" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EquityMethodInvestmentsContributions" abstract="false" name="EquityMethodInvestmentsContributions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EquityMethodInvestmentAmortizationOfBasisDifference" abstract="false" name="EquityMethodInvestmentAmortizationOfBasisDifference" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_PlantAndEquipmentMember" abstract="true" name="PlantAndEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_CompressedNaturalGasRenewableNaturalGasFuelingStationsMember" abstract="true" name="CompressedNaturalGasRenewableNaturalGasFuelingStationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OfficeFurnitureAndFixturesAndOfficeEquipmentMember" abstract="true" name="OfficeFurnitureAndFixturesAndOfficeEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OpalTermLoanMember" abstract="true" name="OpalTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_PipelineProjectMember" abstract="true" name="PipelineProjectMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_WashingtonGasLightCompanyWGLMember" abstract="true" name="WashingtonGasLightCompanyWGLMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_PowerPurchaseAgreementsMember" abstract="true" name="PowerPurchaseAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_TransmissionDistributionInterconnectionMember" abstract="true" name="TransmissionDistributionInterconnectionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" abstract="false" name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_LongTermDebtMaturityAfterYearFour" abstract="false" name="LongTermDebtMaturityAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_CreditAgreementMember" abstract="true" name="CreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_SeniorSecuredCreditFacilityTermLoanMember" abstract="true" name="SeniorSecuredCreditFacilityTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_SeniorSecuredCreditFacilityWorkingCapitalFacilityMember" abstract="true" name="SeniorSecuredCreditFacilityWorkingCapitalFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_SeniorSecuredCreditFacilityDebtReserveAndLiquidityFacilityMember" abstract="true" name="SeniorSecuredCreditFacilityDebtReserveAndLiquidityFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_PermanentLoanMember" abstract="true" name="PermanentLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_SeniorSecuredCreditFacilityMember" abstract="true" name="SeniorSecuredCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_VariableRatePeriodAxis" abstract="true" name="VariableRatePeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="wdq_VariableRatePeriodDomain" abstract="true" name="VariableRatePeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_VariableRateFixedMarginPeriodOneMember" abstract="true" name="VariableRateFixedMarginPeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_VariableRateFixedMarginPeriodTwoMember" abstract="true" name="VariableRateFixedMarginPeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_SunomaMember" abstract="true" name="SunomaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_DebtInstrumentAmortizationRate" abstract="false" name="DebtInstrumentAmortizationRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_DebtInstrumentLeverageCashSweep" abstract="false" name="DebtInstrumentLeverageCashSweep" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantDebtServiceCoverageRatioMinimum" abstract="false" name="DebtInstrumentCovenantDebtServiceCoverageRatioMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantDebtToCashFlowRatioDuringDelayedDrawAvailabilityPeriodMinimum" abstract="false" name="DebtInstrumentCovenantDebtToCashFlowRatioDuringDelayedDrawAvailabilityPeriodMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantDebtToCashFlowRatioAfterDelayedDrawAvailabilityPeriodMinimum" abstract="false" name="DebtInstrumentCovenantDebtToCashFlowRatioAfterDelayedDrawAvailabilityPeriodMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantDebtToWorthRatioMaximum" abstract="false" name="DebtInstrumentCovenantDebtToWorthRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantCurrentRatioMinimum" abstract="false" name="DebtInstrumentCovenantCurrentRatioMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="wdq_PaymentsOfAmortizationQuarterly" abstract="false" name="PaymentsOfAmortizationQuarterly" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EquipmentLoanMember" abstract="true" name="EquipmentLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_FuelProviderAgreementsFPAsMember" abstract="true" name="FuelProviderAgreementsFPAsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_SiteMember" abstract="true" name="SiteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OfficeAndWarehouseSpaceMember" abstract="true" name="OfficeAndWarehouseSpaceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_IncreaseDecreaseInOperatingLeaseRightOfUseAssetAfterAccumulatedAmortization" abstract="false" name="IncreaseDecreaseInOperatingLeaseRightOfUseAssetAfterAccumulatedAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_LesseeOperatingLeaseIncrementalBorrowingRate" abstract="false" name="LesseeOperatingLeaseIncrementalBorrowingRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_LesseeFinanceLeaseRentPerGasolineGallonEquivalent" abstract="false" name="LesseeFinanceLeaseRentPerGasolineGallonEquivalent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:monetaryPerEnergyItemType"/>
  <xs:element id="wdq_NumberOfLeases" abstract="false" name="NumberOfLeases" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_NumberOfVehicles" abstract="false" name="NumberOfVehicles" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseRightOfUseAsset" abstract="false" name="OperatingAndFinanceLeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityCurrent" abstract="false" name="OperatingAndFinanceLeaseLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityNoncurrent" abstract="false" name="OperatingAndFinanceLeaseLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiability" abstract="false" name="OperatingAndFinanceLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_LesseeOperatingAndFinanceLeaseDiscountRate" abstract="false" name="LesseeOperatingAndFinanceLeaseDiscountRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_WeightedAverageRemainingLeaseTermAbstract" abstract="true" name="WeightedAverageRemainingLeaseTermAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_LeasesWeightedAverageDiscountRateAbstract" abstract="true" name="LeasesWeightedAverageDiscountRateAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityToBePaidYearOne" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityToBePaidYearTwo" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityToBePaidYearThree" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityToBePaidYearFour" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityToBePaidYearFive" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityToBePaidAfterYearFive" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityToBePaid" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaid" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingLeaseAndFinanceLeaseLiabilityUndiscountedExcessAmount" abstract="false" name="OperatingLeaseAndFinanceLeaseLiabilityUndiscountedExcessAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsIncludingNetPeriodicSettlementsGainLossNet" abstract="false" name="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsIncludingNetPeriodicSettlementsGainLossNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsNetPeriodicSettlements" abstract="false" name="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsNetPeriodicSettlements" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_SponsorEarnoutSharesMember" abstract="true" name="SponsorEarnoutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_DerivativeNumberOfAdditionalInstrumentsHeld" abstract="false" name="DerivativeNumberOfAdditionalInstrumentsHeld" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_DerivativeContractPriceAverage" abstract="false" name="DerivativeContractPriceAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:monetaryPerEnergyItemType"/>
  <xs:element id="wdq_AssetRetirementObligationMeasurementInput" abstract="false" name="AssetRetirementObligationMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="wdq_CommodityContractContractOneMember" abstract="true" name="CommodityContractContractOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_CommodityContractContractTwoMember" abstract="true" name="CommodityContractContractTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OtherDerivativesMember" abstract="true" name="OtherDerivativesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OpalEarnoutSharesMember" abstract="true" name="OpalEarnoutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_SeriesA1PreferredStockMember" abstract="true" name="SeriesA1PreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_HillmanMember" abstract="true" name="HillmanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_BioTownBiogasLLCBiotownMember" abstract="true" name="BioTownBiogasLLCBiotownMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ReynoldsRNGLLCMember" abstract="true" name="ReynoldsRNGLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_PineBendSunomaAndNobleRoadMember" abstract="true" name="PineBendSunomaAndNobleRoadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_FortistarLLCFortistarMember" abstract="true" name="FortistarLLCFortistarMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_CostarPartnersLLCCostarMember" abstract="true" name="CostarPartnersLLCCostarMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_EnvironmentalProcessingFeesMember" abstract="true" name="EnvironmentalProcessingFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_AdministrativeServicesAgreementMember" abstract="true" name="AdministrativeServicesAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ManagementServicesAgreementMember" abstract="true" name="ManagementServicesAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_InterimServicesAgreementMember" abstract="true" name="InterimServicesAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_NoncontrollingInterestNumberOfSubsidiariesWithNoncontrollingOwnership" abstract="false" name="NoncontrollingInterestNumberOfSubsidiariesWithNoncontrollingOwnership" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_SaleOfStockNumberOfSharesSubscribed" abstract="false" name="SaleOfStockNumberOfSharesSubscribed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_AssetAcquisitionEquityInterestsIssuedOrIssuableNumberOfShares" abstract="false" name="AssetAcquisitionEquityInterestsIssuedOrIssuableNumberOfShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_RelatedPartyTransactionTermOfContract" abstract="false" name="RelatedPartyTransactionTermOfContract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_RelatedPartyTransactionWrittenNoticeOfTerminationPeriod" abstract="false" name="RelatedPartyTransactionWrittenNoticeOfTerminationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_RelatedPartyTransactionServiceFeesFixedAnnualPaymentAmount" abstract="false" name="RelatedPartyTransactionServiceFeesFixedAnnualPaymentAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RelatedPartyTransactionMonthlyFeeMaximum" abstract="false" name="RelatedPartyTransactionMonthlyFeeMaximum" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EquityMethodInvestmentEntitiesMember" abstract="true" name="EquityMethodInvestmentEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_StaffingAndManagementServicesMember" abstract="true" name="StaffingAndManagementServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_RentFixedCompensationMember" abstract="true" name="RentFixedCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ITServicesMember" abstract="true" name="ITServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_VariableInterestEntityNumberOfEntities" abstract="false" name="VariableInterestEntityNumberOfEntities" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_VariableInterestEntityNumberOfEntitiesConsolidated" abstract="false" name="VariableInterestEntityNumberOfEntitiesConsolidated" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_B.RileySecuritiesInc.CantorFitzgeraldCo.AndStifelNicolausCompanyIncorporatedAgentMember" abstract="true" name="B.RileySecuritiesInc.CantorFitzgeraldCo.AndStifelNicolausCompanyIncorporatedAgentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_CommonStockNumberOfVotesPerShare" abstract="false" name="CommonStockNumberOfVotesPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_CommonStockNumberOfVotes" abstract="false" name="CommonStockNumberOfVotes" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_SaleOfStockPercentageOfGrossProceedsOnSale" abstract="false" name="SaleOfStockPercentageOfGrossProceedsOnSale" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_VariableInterestEntityNumberOfProjectSubsidiary" abstract="false" name="VariableInterestEntityNumberOfProjectSubsidiary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateElectionToIssueAdditionalPreferredUnitsNumberOfFirstDividendPayments" abstract="false" name="PreferredStockDividendRateElectionToIssueAdditionalPreferredUnitsNumberOfFirstDividendPayments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateEventOfDefaultPercentage" abstract="false" name="PreferredStockDividendRateEventOfDefaultPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateEventOfDefaultIncreaseForEachEventPercentage" abstract="false" name="PreferredStockDividendRateEventOfDefaultIncreaseForEachEventPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateEventOfDefaultMaximumAfterIncreasesPercentage" abstract="false" name="PreferredStockDividendRateEventOfDefaultMaximumAfterIncreasesPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockRedemptionPeriodAfterWhichRedeemable" abstract="false" name="PreferredStockRedemptionPeriodAfterWhichRedeemable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_PreferredStockRedemptionPeriodAfterFourthAnniversary" abstract="false" name="PreferredStockRedemptionPeriodAfterFourthAnniversary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateIfFailedToRedeem" abstract="false" name="PreferredStockDividendRateIfFailedToRedeem" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateIncreaseToAfterOneYearIfFailedToRedeem" abstract="false" name="PreferredStockDividendRateIncreaseToAfterOneYearIfFailedToRedeem" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateQuarterlyIncreaseAfterOneYearIfFailedToRedeem" abstract="false" name="PreferredStockDividendRateQuarterlyIncreaseAfterOneYearIfFailedToRedeem" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateIfFailedToRedeemMaximum" abstract="false" name="PreferredStockDividendRateIfFailedToRedeemMaximum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockConversionPrice" abstract="false" name="PreferredStockConversionPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="wdq_PreferredStockConversionFirstYearDiscountPercentage" abstract="false" name="PreferredStockConversionFirstYearDiscountPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockConversionSecondYearDiscountPercentage" abstract="false" name="PreferredStockConversionSecondYearDiscountPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockConversionAfterSecondYearDiscountPercentage" abstract="false" name="PreferredStockConversionAfterSecondYearDiscountPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_PreferredStockConversionVolumeWeightedAveragePricePeriod" abstract="false" name="PreferredStockConversionVolumeWeightedAveragePricePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_IncreaseDecreaseInTemporaryEquityUnitsRollForward" abstract="true" name="IncreaseDecreaseInTemporaryEquityUnitsRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_IncreaseDecreaseInTemporaryEquityAmountRollForward" abstract="true" name="IncreaseDecreaseInTemporaryEquityAmountRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_TemporaryEquityAccretionOfDividendsAttributableToParent" abstract="false" name="TemporaryEquityAccretionOfDividendsAttributableToParent" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TemporaryEquityAccretionOfDividendsAttributableToCommonStockholdersBasic" abstract="false" name="TemporaryEquityAccretionOfDividendsAttributableToCommonStockholdersBasic" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EarnoutTargetMember" abstract="true" name="EarnoutTargetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_A2022OmnibusEquityIncentivePlan2022PlanMember" abstract="true" name="A2022OmnibusEquityIncentivePlan2022PlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_CertainEmployeesMember" abstract="true" name="CertainEmployeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionTotalNonvestedWeightedAverageExercisePrice" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionTotalNonvestedWeightedAverageExercisePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementsByShareBasedPaymentAwardFairValue" abstract="false" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesWithheldForTaxWithholdingObligationWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesWithheldForTaxWithholdingObligationWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueRollForward" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueOutstanding" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueOutstanding" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueGrantsInPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueGrantsInPeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueVested" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueVested" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueSharesWithheldForTaxWithholdingObligation" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueSharesWithheldForTaxWithholdingObligation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueForfeitures" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueForfeitures" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePriceAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePriceAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionNonvestedExercisePrice" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionNonvestedExercisePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableExercisePrice" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableExercisePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateFairValueRollForward" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateFairValueRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAggregateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAggregateFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateFairValueGrantsInPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateFairValueGrantsInPeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAggregateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAggregateFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstandingAndNonvestedNumber" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstandingAndNonvestedNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstandingAndNonvestedWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstandingAndNonvestedWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstandingAndNonvested" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstandingAndNonvested" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfInstallments" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfInstallments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_ParentEquityAwardsMember" abstract="true" name="ParentEquityAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_NaturalGasCompressedMember" abstract="true" name="NaturalGasCompressedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_VECPartnersIncDbaCEIBuildersCEIMember" abstract="true" name="VECPartnersIncDbaCEIBuildersCEIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_MDDigesterLLCMember" abstract="true" name="MDDigesterLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_NumberOfStandbyLettersOfCreditsHeld" abstract="false" name="NumberOfStandbyLettersOfCreditsHeld" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_NumberOfPurchaseOptionContracts" abstract="false" name="NumberOfPurchaseOptionContracts" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_LossContingencyEstimateOfPossibleLossPerContract" abstract="false" name="LossContingencyEstimateOfPossibleLossPerContract" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
