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  <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_TreasuryStockValueAcquiredFairValue" abstract="false" name="TreasuryStockValueAcquiredFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_CommonStockVotesPerShare" abstract="false" name="CommonStockVotesPerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_RightOfUseLiabilitiesObtainedInExchangeForFinanceLeaseLiabilityCurrent" abstract="false" name="RightOfUseLiabilitiesObtainedInExchangeForFinanceLeaseLiabilityCurrent" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_FinancingReceivableMaximumRevenueBasedDistributionsEntitledToReceive" abstract="false" name="FinancingReceivableMaximumRevenueBasedDistributionsEntitledToReceive" nillable="true" xbrli:periodType="duration" 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_PineBendSunomaAndNobleRoadMember" abstract="true" name="PineBendSunomaAndNobleRoadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_NumberOfIntangibleAssets" abstract="false" name="NumberOfIntangibleAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_NumberOfLeases" abstract="false" name="NumberOfLeases" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_OperatingAndFinanceLeaseLiabilityToBePaidYearOne" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_NextEraMember" abstract="true" name="NextEraMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_OpalTermLoanIIDelayedTermLoanDDTLFacilityMember" abstract="true" name="OpalTermLoanIIDelayedTermLoanDDTLFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1: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_SeniorSecuredCreditFacilityTermLoanMember" abstract="true" name="SeniorSecuredCreditFacilityTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_RightOfUseLiabilitiesObtainedInExchangeForFinanceLeaseLiabilityNoncurrent" abstract="false" name="RightOfUseLiabilitiesObtainedInExchangeForFinanceLeaseLiabilityNoncurrent" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_RestrictedCashCurrentInterestReserve" abstract="false" name="RestrictedCashCurrentInterestReserve" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_SaleOfStockPercentageOfGrossProceedsOnSale" abstract="false" name="SaleOfStockPercentageOfGrossProceedsOnSale" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_ProjectSubsidiaryDomain" abstract="true" name="ProjectSubsidiaryDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_DebtInstrumentAdditionalPrepaymentAxis" abstract="true" name="DebtInstrumentAdditionalPrepaymentAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <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_CommodityContractContractThreeMember" abstract="true" name="CommodityContractContractThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_FuelProviderAgreementsFPAsMember" abstract="true" name="FuelProviderAgreementsFPAsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_AccruedFederalFuelTaxCreditsPerGasolineGallon" abstract="false" name="AccruedFederalFuelTaxCreditsPerGasolineGallon" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:monetaryPerVolumeItemType"/>
  <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_ParagonMember" abstract="true" name="ParagonMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ProceedsDerivativeInstrumentFromSettlementFromCounterparty" abstract="false" name="ProceedsDerivativeInstrumentFromSettlementFromCounterparty" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_InterestRateSwap2Member" abstract="true" name="InterestRateSwap2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" abstract="false" name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RNGAtlanticMember" abstract="true" name="RNGAtlanticMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_PaymentsOfAmortizationQuarterly" abstract="false" name="PaymentsOfAmortizationQuarterly" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" 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_FinancingReceivableStatedInterestRatePortionPayableInKind" abstract="false" name="FinancingReceivableStatedInterestRatePortionPayableInKind" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <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_StaffingAndManagementServicesMember" abstract="true" name="StaffingAndManagementServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_NaturalGasRenewableMember" abstract="true" name="NaturalGasRenewableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ProjectSubsidiaryAxis" abstract="true" name="ProjectSubsidiaryAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="wdq_DebtInstrumentAdditionalPrepaymentFourMember" abstract="true" name="DebtInstrumentAdditionalPrepaymentFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_TwoCustomersMember" abstract="true" name="TwoCustomersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_CommonClassDMember" abstract="true" name="CommonClassDMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_RestrictedStockUnitsRSUsJune2023Member" abstract="true" name="RestrictedStockUnitsRSUsJune2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_PreferredStockConversionAfterSecondYearDiscountPercentage" abstract="false" name="PreferredStockConversionAfterSecondYearDiscountPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_StockIssuedDuringPeriodSharesConversionOfWarrants" abstract="false" name="StockIssuedDuringPeriodSharesConversionOfWarrants" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_NoncashBusinessCombinationFairValueAdjustmentsOfDerivativeWarrantLiabilities" abstract="false" name="NoncashBusinessCombinationFairValueAdjustmentsOfDerivativeWarrantLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ComprehensiveIncomeLossAvailableToCommonStockholders" abstract="false" name="ComprehensiveIncomeLossAvailableToCommonStockholders" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EquityMethodInvestmentAdditionalInvestmentToParentRepresentingCapitalizedInterest" abstract="false" name="EquityMethodInvestmentAdditionalInvestmentToParentRepresentingCapitalizedInterest" 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_IncreaseDecreaseInEquityMethodInvestmentsRollForward" abstract="true" name="IncreaseDecreaseInEquityMethodInvestmentsRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_EquityMethodInvestmentIncomeLossGross" abstract="false" name="EquityMethodInvestmentIncomeLossGross" nillable="true" xbrli:periodType="duration" 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_NumberOfStandbyLettersOfCreditsHeld" abstract="false" name="NumberOfStandbyLettersOfCreditsHeld" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_NumberOfNaturalGasProducers" abstract="false" name="NumberOfNaturalGasProducers" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_PreferredStockRedemptionPeriodAfterFourthAnniversary" abstract="false" name="PreferredStockRedemptionPeriodAfterFourthAnniversary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_DebtInstrumentConvertiblePercentageOfOutstandingAmountConverted" abstract="false" name="DebtInstrumentConvertiblePercentageOfOutstandingAmountConverted" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <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_PaymentsToPurchaseSharesUponExerciseOfPutOption" abstract="false" name="PaymentsToPurchaseSharesUponExerciseOfPutOption" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_EquityMethodInvestmentResearchAndDevelopmentExpense" abstract="false" name="EquityMethodInvestmentResearchAndDevelopmentExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_NumberOfFacilities" abstract="false" name="NumberOfFacilities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_GainLossOnRepaymentOfNotesReceivable" abstract="false" name="GainLossOnRepaymentOfNotesReceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PreferredStockDividendRateQuarterlyIncreaseAfterOneYearIfFailedToRedeem" abstract="false" name="PreferredStockDividendRateQuarterlyIncreaseAfterOneYearIfFailedToRedeem" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <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_RepaymentsOfLongTermConstructionLoan" abstract="false" name="RepaymentsOfLongTermConstructionLoan" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_FuelPurchasingAgreementsMember" abstract="true" name="FuelPurchasingAgreementsMember" 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_MeteoraCapitalPartnersMember" abstract="true" name="MeteoraCapitalPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstandingAndNonvestedNumber" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstandingAndNonvestedNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_NumberOfWhollyOwnedSubsidiaries" abstract="false" name="NumberOfWhollyOwnedSubsidiaries" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_DeferredFinancingCostsAndCapitalizedInterestMember" abstract="true" name="DeferredFinancingCostsAndCapitalizedInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ContractWithCustomerLiabilityBillingsInExcessOfCostsAndEstimatedEarningsCurrent" abstract="false" name="ContractWithCustomerLiabilityBillingsInExcessOfCostsAndEstimatedEarningsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_NumberOfPurchaseOptionContracts" abstract="false" name="NumberOfPurchaseOptionContracts" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_AssetRetirementObligationMeasurementInput" abstract="false" name="AssetRetirementObligationMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="wdq_FinancingReceivablePercentageOfRevenueBasedDistributionsEntitledToReceive" abstract="false" name="FinancingReceivablePercentageOfRevenueBasedDistributionsEntitledToReceive" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_VariableInterestEntityNumberOfEntities" abstract="false" name="VariableInterestEntityNumberOfEntities" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_OperatingAndFinanceLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_DebtInstrumentCovenantDebtToCashFlowRatioDuringDelayedDrawAvailabilityPeriodMinimum" abstract="false" name="DebtInstrumentCovenantDebtToCashFlowRatioDuringDelayedDrawAvailabilityPeriodMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <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_TemporaryEquityPaidInKindPreferredDividendDistribution" abstract="false" name="TemporaryEquityPaidInKindPreferredDividendDistribution" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OperatingLeaseExpenseQuarterlyRentalPayment" abstract="false" name="OperatingLeaseExpenseQuarterlyRentalPayment" nillable="true" xbrli:periodType="duration" 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_OperatingAndFinanceLeaseLiabilityNoncurrent" abstract="false" name="OperatingAndFinanceLeaseLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_LesseeFinanceLeaseRoyaltyPerGasolineGallonEquivalent" abstract="false" name="LesseeFinanceLeaseRoyaltyPerGasolineGallonEquivalent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:monetaryPerEnergyItemType"/>
  <xs:element id="wdq_EarningsPerShareBasicAndDilutedEPSAbstract" abstract="true" name="EarningsPerShareBasicAndDilutedEPSAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_TemporaryEquityDividendPreferredStockCashDistributionsToRedeemablePreferredNoncontrollingInterestHolders" abstract="false" name="TemporaryEquityDividendPreferredStockCashDistributionsToRedeemablePreferredNoncontrollingInterestHolders" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_WeightedAverageRemainingLeaseTermAbstract" abstract="true" name="WeightedAverageRemainingLeaseTermAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_ContractWithCustomerAssetAfterAllowanceForCreditLossCostAndEstimatedEarningsInExcessOfBillingsCurrent" abstract="false" name="ContractWithCustomerAssetAfterAllowanceForCreditLossCostAndEstimatedEarningsInExcessOfBillingsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TemporaryEquityAmortizationOnPaymentToAcquireNonRedeemableNoncontrollingInterest" abstract="false" name="TemporaryEquityAmortizationOnPaymentToAcquireNonRedeemableNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ProceedsFromNoncontrollingInterestJointVenturePartnersRedeemable" abstract="false" name="ProceedsFromNoncontrollingInterestJointVenturePartnersRedeemable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PreferredStockDividendRateEventOfDefaultMaximumAfterIncreasesPercentage" abstract="false" name="PreferredStockDividendRateEventOfDefaultMaximumAfterIncreasesPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <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_ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest" abstract="false" name="ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_NaturalGasRenewableAndFuelStationServicesMember" abstract="true" name="NaturalGasRenewableAndFuelStationServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfIssuedStockMinimum" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfIssuedStockMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <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_TemporaryEquityOtherComprehensiveIncomeNetOfTax" abstract="false" name="TemporaryEquityOtherComprehensiveIncomeNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TemporaryEquityNoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" abstract="false" name="TemporaryEquityNoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ForwardPurchaseAgreementMember" abstract="true" name="ForwardPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_IncreaseDecreaseInTemporaryEquityAndRedeemableNoncontrollingInterestAbstract" abstract="true" name="IncreaseDecreaseInTemporaryEquityAndRedeemableNoncontrollingInterestAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_FirstAmendmentToAmendedAndRestatedCreditAndGuarantyAgreementCreditAgreementAmendmentAndFirstAmendmentToDepositaryAgreementTheDepositaryAgreementAmendmentMember" abstract="true" name="FirstAmendmentToAmendedAndRestatedCreditAndGuarantyAgreementCreditAgreementAmendmentAndFirstAmendmentToDepositaryAgreementTheDepositaryAgreementAmendmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantDebtServiceCoverageRatioMinimum" abstract="false" name="DebtInstrumentCovenantDebtServiceCoverageRatioMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <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_RelatedPartyTransactionTermOfContract" abstract="false" name="RelatedPartyTransactionTermOfContract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_SaleOfStockNumberOfSharesSubscribed" abstract="false" name="SaleOfStockNumberOfSharesSubscribed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_NoncashBusinessCombinationFairValueAdjustmentsOfEarnoutLiabilities" abstract="false" name="NoncashBusinessCombinationFairValueAdjustmentsOfEarnoutLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_EnvironmentalAttributesMember" abstract="true" name="EnvironmentalAttributesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_SponsorMembersMember" abstract="true" name="SponsorMembersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_PreferredStockDividendRateElectionToIssueAdditionalPreferredUnitsNumberOfFirstDividendPayments" abstract="false" name="PreferredStockDividendRateElectionToIssueAdditionalPreferredUnitsNumberOfFirstDividendPayments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_StockIssuedDuringPeriodValueReverseRecapitalization" abstract="false" name="StockIssuedDuringPeriodValueReverseRecapitalization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OmnibusAndConsentAgreementTheFM3AmendmentMember" abstract="true" name="OmnibusAndConsentAgreementTheFM3AmendmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_PreferredStockConversionVolumeWeightedAveragePricePeriod" abstract="false" name="PreferredStockConversionVolumeWeightedAveragePricePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_OperatingAgreementsMember" abstract="true" name="OperatingAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_TermSecuredOvernightFinancingRateSOFRMember" abstract="true" name="TermSecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_PurchaseAndSalesAgreementTermOfContract" abstract="false" name="PurchaseAndSalesAgreementTermOfContract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_OpalTermLoanIIMember" abstract="true" name="OpalTermLoanIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_FirstAmendmentToAmendedAndRestatedCreditAndGuarantyAgreementCreditAgreementAmendmentMember" abstract="true" name="FirstAmendmentToAmendedAndRestatedCreditAndGuarantyAgreementCreditAgreementAmendmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_TreasuryStockSharesAcquiredFairValue" abstract="false" name="TreasuryStockSharesAcquiredFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_DerivativeNumberOfAdditionalInstrumentsHeld" abstract="false" name="DerivativeNumberOfAdditionalInstrumentsHeld" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_DebtInstrumentReimbursementsReceived" abstract="false" name="DebtInstrumentReimbursementsReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OCIFuelsBVOCIMember" abstract="true" name="OCIFuelsBVOCIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantCurrentRatioMinimum" abstract="false" name="DebtInstrumentCovenantCurrentRatioMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantDebtServiceCoverageRatioMaximum" abstract="false" name="DebtInstrumentCovenantDebtServiceCoverageRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <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_VariableInterestEntityNumberOfProjectSubsidiary" abstract="false" name="VariableInterestEntityNumberOfProjectSubsidiary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_OperatingLeaseExpenseMonthlyRentalPayment" abstract="false" name="OperatingLeaseExpenseMonthlyRentalPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" 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_RentFixedCompensationMember" abstract="true" name="RentFixedCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_NoncashBusinessCombinationFairValueAdjustmentsOfPutOptionOnForwardPurchaseAgreement" abstract="false" name="NoncashBusinessCombinationFairValueAdjustmentsOfPutOptionOnForwardPurchaseAgreement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ProceedsFromNonredeemableNoncontrollingInterestRelatedParty" abstract="false" name="ProceedsFromNonredeemableNoncontrollingInterestRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_NoncontrollingInterestNumberOfSubsidiariesWithNoncontrollingOwnership" abstract="false" name="NoncontrollingInterestNumberOfSubsidiariesWithNoncontrollingOwnership" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_NumberOfAgreements" abstract="false" name="NumberOfAgreements" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_AccruedCapitalExpensesCurrent" abstract="false" name="AccruedCapitalExpensesCurrent" nillable="true" xbrli:periodType="instant" 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_LossContingencyEstimateOfPossibleLossPerContract" abstract="false" name="LossContingencyEstimateOfPossibleLossPerContract" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_OtherComprehensiveIncomeLossCashFlowHedgeGainLossExcludingRedeemableNoncontrollingInterestsAfterReclassificationAndTax" abstract="false" name="OtherComprehensiveIncomeLossCashFlowHedgeGainLossExcludingRedeemableNoncontrollingInterestsAfterReclassificationAndTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_DerivativeInstrumentContingentConsiderationLiabilityPeriod" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_ProceedsFromEquipmentLoans" abstract="false" name="ProceedsFromEquipmentLoans" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_IntangibleLiabilitiesPolicyPolicyTextBlock" abstract="false" name="IntangibleLiabilitiesPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <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_PreferredStockDividendRateIfFailedToRedeem" abstract="false" name="PreferredStockDividendRateIfFailedToRedeem" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_DebtInstrumentCovenantDebtToWorthRatioMaximum" abstract="false" name="DebtInstrumentCovenantDebtToWorthRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <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_LossOnExchangeOfWarrants" abstract="false" name="LossOnExchangeOfWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_NumberOfVehicles" abstract="false" name="NumberOfVehicles" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_LeasesWeightedAverageDiscountRateAbstract" abstract="true" name="LeasesWeightedAverageDiscountRateAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_VariableInterestEntityNumberOfEntitiesConsolidated" abstract="false" name="VariableInterestEntityNumberOfEntitiesConsolidated" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_BeaconMember" abstract="true" name="BeaconMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ArcLightClassACommonStockMember" abstract="true" name="ArcLightClassACommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_OperatingAndFinanceLeaseLiabilityToBePaidYearThree" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_DebtInstrumentAdditionalPrepaymentDomain" abstract="true" name="DebtInstrumentAdditionalPrepaymentDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_OpalTermLoanIIDebtServiceReserveDSRFacilityMember" abstract="true" name="OpalTermLoanIIDebtServiceReserveDSRFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_NumberOfFuelStations" abstract="false" name="NumberOfFuelStations" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_RelatedPartyTransactionWrittenNoticeOfTerminationPeriod" abstract="false" name="RelatedPartyTransactionWrittenNoticeOfTerminationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <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_ParentEquityAwardsMember" abstract="true" name="ParentEquityAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_OperatingAndFinanceLeaseLiability" abstract="false" name="OperatingAndFinanceLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RestrictedCashCurrentJointVentureEquityContribution" abstract="false" name="RestrictedCashCurrentJointVentureEquityContribution" 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_NoncashDividendsRedeemablePreferredNonControllingInterestsPaidInKind" abstract="false" name="NoncashDividendsRedeemablePreferredNonControllingInterestsPaidInKind" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" 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_OneSupplierMember" abstract="true" name="OneSupplierMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_ForfeitureOnSharesIssuedWarrantExchange" abstract="false" name="ForfeitureOnSharesIssuedWarrantExchange" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_TemporaryEquityIncreaseFromDividendDistributionRedeemablePreferredNonControllingInterests" abstract="false" name="TemporaryEquityIncreaseFromDividendDistributionRedeemablePreferredNonControllingInterests" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_NobleRoadMember" abstract="true" name="NobleRoadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_EmeraldAndSapphireMember" abstract="true" name="EmeraldAndSapphireMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_SecuredOvernightFinancingRateSOFRMember" abstract="true" name="SecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_GainLossOnTransfersOfNonFinancialAssetsAccountedForAsSale" abstract="false" name="GainLossOnTransfersOfNonFinancialAssetsAccountedForAsSale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_DerivativeInstrumentContingentConsiderationLiabilityEscrow" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEscrow" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" 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_BrownGasMember" abstract="true" name="BrownGasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <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_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardUnvestedPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardUnvestedPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="wdq_EquityMethodInvestmentOwnershipPercentageTransferred" abstract="false" name="EquityMethodInvestmentOwnershipPercentageTransferred" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_FinancingReceivableStatedInterestRatePortionPayableInCash" abstract="false" name="FinancingReceivableStatedInterestRatePortionPayableInCash" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <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_AssetAcquisitionEquityInterestsIssuedOrIssuableNumberOfShares" abstract="false" name="AssetAcquisitionEquityInterestsIssuedOrIssuableNumberOfShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_DebtInstrumentCovenantDebtToCashFlowRatioAfterDelayedDrawAvailabilityPeriodMinimum" abstract="false" name="DebtInstrumentCovenantDebtToCashFlowRatioAfterDelayedDrawAvailabilityPeriodMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="wdq_CreditAgreementMember" abstract="true" name="CreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
