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  <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_EquityMethodInvestmentCapitalizedInterest" abstract="false" name="EquityMethodInvestmentCapitalizedInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_LongTermDebtMaturityAfterYearFive" abstract="false" name="LongTermDebtMaturityAfterYearFive" 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_FuelProviderAgreementsFPAsMember" abstract="true" name="FuelProviderAgreementsFPAsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1: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_SponsorEarnoutSharesMember" abstract="true" name="SponsorEarnoutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_AssetRetirementObligationMeasurementInput" abstract="false" name="AssetRetirementObligationMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="wdq_ConvertibleNotesReceivableFairValueDisclosure" abstract="false" name="ConvertibleNotesReceivableFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_RenewablePowerMember" abstract="true" name="RenewablePowerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_RNGFuelMember" abstract="true" name="RNGFuelMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_OtherDerivativesMember" abstract="true" name="OtherDerivativesMember" 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_EnvironmentalProcessingFeesMember" abstract="true" name="EnvironmentalProcessingFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="wdq_WasatchInterestMember" abstract="true" name="WasatchInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ProjectInterestMember" abstract="true" name="ProjectInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ExerciseYearAxis" abstract="true" name="ExerciseYearAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="wdq_ExerciseYearDomain" abstract="true" name="ExerciseYearDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ExerciseYear1Member" abstract="true" name="ExerciseYear1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ExerciseYear2Member" abstract="true" name="ExerciseYear2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ExerciseYear3Member" abstract="true" name="ExerciseYear3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_SaleOfStockNumberOfSharesSubscribed" abstract="false" name="SaleOfStockNumberOfSharesSubscribed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_RevenuesAdjusted" abstract="false" name="RevenuesAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_TerminationWrittenNoticeTerm" abstract="false" name="TerminationWrittenNoticeTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdq_BusinessAcquisitionInternalRateOfReturn" abstract="false" name="BusinessAcquisitionInternalRateOfReturn" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_BusinessAcquisitionHourlyRateFeeMaximum" abstract="false" name="BusinessAcquisitionHourlyRateFeeMaximum" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_EquityMethodInvestmentEntitiesMember" abstract="true" name="EquityMethodInvestmentEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_FortistarLLCFortistarMember" abstract="true" name="FortistarLLCFortistarMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1: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_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_CorporateAndEliminationsMember" abstract="true" name="CorporateAndEliminationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_CostOfGoodsAndServicesSoldAndOtherOperatingExpenses" abstract="false" name="CostOfGoodsAndServicesSoldAndOtherOperatingExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_CustomerAMember" abstract="true" name="CustomerAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_CustomerBMember" abstract="true" name="CustomerBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_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_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesWithheldForTaxWithholdingObligationWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesWithheldForTaxWithholdingObligationWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="wdq_ProfitInterestsMember" abstract="true" name="ProfitInterestsMember" 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_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_ApolloManagementHoldingsL..P.Member" abstract="true" name="ApolloManagementHoldingsL..P.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_InvestmentTaxCreditPurchaseAgreement" abstract="false" name="InvestmentTaxCreditPurchaseAgreement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_ProceedsFromInvestmentTaxCredit" abstract="false" name="ProceedsFromInvestmentTaxCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdq_PurchaseObligationAmountDecreasePercent" abstract="false" name="PurchaseObligationAmountDecreasePercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_InvestmentTaxCreditTerm" abstract="false" name="InvestmentTaxCreditTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <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_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_OperatingAndFinanceLeaseLiabilityToBePaidRemainderOfFiscalYear" abstract="false" name="OperatingAndFinanceLeaseLiabilityToBePaidRemainderOfFiscalYear" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" 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_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_RNGFacilityMember" abstract="true" name="RNGFacilityMember" 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_SubsidiaryOwnershipPercentageCounterparty" abstract="false" name="SubsidiaryOwnershipPercentageCounterparty" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_LandfillGas" abstract="false" name="LandfillGas" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_PropertyLeaseTerm" abstract="false" name="PropertyLeaseTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
</xs:schema>
