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  <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_PineBendMember" abstract="true" name="PineBendMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_NobleRoadMember" abstract="true" name="NobleRoadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_GREPBTBHoldingsLLCGREPMember" abstract="true" name="GREPBTBHoldingsLLCGREPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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-types:domainItemType"/>
  <xs:element id="wdq_SunomaLoanMember" abstract="true" name="SunomaLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_NaturalGasRenewableMember" abstract="true" name="NaturalGasRenewableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_NumberOfFacilities" abstract="false" name="NumberOfFacilities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wdq_FuelProviderAgreementsFPAsMember" abstract="true" name="FuelProviderAgreementsFPAsMember" 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-types:domainItemType"/>
  <xs:element id="wdq_SponsorEarnoutSharesMember" abstract="true" name="SponsorEarnoutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsNetPeriodicSettlements" abstract="false" name="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsNetPeriodicSettlements" nillable="true" xbrli:periodType="duration" 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_OtherDerivativesMember" abstract="true" name="OtherDerivativesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_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_CommonStockNumberOfVotesPerShare" abstract="false" name="CommonStockNumberOfVotesPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_CommoditySwapsMember" abstract="true" name="CommoditySwapsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_EnvironmentalProcessingFeesMember" abstract="true" name="EnvironmentalProcessingFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_CostarPartnersLLCCostarMember" abstract="true" name="CostarPartnersLLCCostarMember" 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-types:domainItemType"/>
  <xs:element id="wdq_RentFixedCompensationMember" abstract="true" name="RentFixedCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_ITServicesMember" abstract="true" name="ITServicesMember" 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-types: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_FortistarAndCostarMember" abstract="true" name="FortistarAndCostarMember" 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_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_SaleOfStockPercentageOfGrossProceedsOnSale" abstract="false" name="SaleOfStockPercentageOfGrossProceedsOnSale" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wdq_SeriesA1PreferredStockMember" abstract="true" name="SeriesA1PreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_TemporaryEquitySharesAccretionOfDividendsNonControllingInterest" abstract="false" name="TemporaryEquitySharesAccretionOfDividendsNonControllingInterest" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_TemporaryEquitySharesAccretionOfDividendsAttributableToCommonStockholdersBasic" abstract="false" name="TemporaryEquitySharesAccretionOfDividendsAttributableToCommonStockholdersBasic" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_TemporaryEquitySharesIncreaseFromDividendDistribution" abstract="false" name="TemporaryEquitySharesIncreaseFromDividendDistribution" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdq_IncreaseDecreaseInTemporaryEquityAmountRollForward" abstract="true" name="IncreaseDecreaseInTemporaryEquityAmountRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdq_TemporaryEquityAccretionOfDividendsNonControllingInterest" abstract="false" name="TemporaryEquityAccretionOfDividendsNonControllingInterest" 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-types:domainItemType"/>
  <xs:element id="wdq_A2022OmnibusEquityIncentivePlan2022PlanMember" abstract="true" name="A2022OmnibusEquityIncentivePlan2022PlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_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_EagleBankMember" abstract="true" name="EagleBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_AtheneAnnuityAndLifeCompanyMember" abstract="true" name="AtheneAnnuityAndLifeCompanyMember" 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_MDAndVSProjectsMember" abstract="true" name="MDAndVSProjectsMember" 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_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_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-types:domainItemType"/>
  <xs:element id="wdq_OfficeAndWarehouseSpaceMember" abstract="true" name="OfficeAndWarehouseSpaceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types: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_CMSMember" abstract="true" name="CMSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wdq_RenewablePowerProjectEnergyMeasure" abstract="false" name="RenewablePowerProjectEnergyMeasure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:energyItemType"/>
  <xs:element id="wdq_RenewablePowerProjectOwnershipPercentage" abstract="false" name="RenewablePowerProjectOwnershipPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
</xs:schema>
