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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>3488095</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>1419143</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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        <CurrentTaxYearMinus2YearsAmt>1167262</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2316960</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3148791</CurrentTaxYearAmt>
        <TotalAmt>7970197</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
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        <CurrentTaxYearMinus2YearsAmt>1167262</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2316960</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3148791</CurrentTaxYearAmt>
        <TotalAmt>7970197</TotalAmt>
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      <PublicSupportTotal170Amt>7970197</PublicSupportTotal170Amt>
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        <CurrentTaxYearMinus3YearsAmt>13746</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>16541</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3448</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>12419</CurrentTaxYearAmt>
        <TotalAmt>46449</TotalAmt>
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        <CurrentTaxYearAmt>3335</CurrentTaxYearAmt>
        <TotalAmt>68712</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>8085358</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>84579</GrossReceiptsRltdActivitiesAmt>
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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART II, LINE 10</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSULTING INCOME 68,712</ExplanationTxt>
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          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
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        <DepreciationAmt>11573</DepreciationAmt>
        <BookValueAmt>7612</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>7612</TotalBookValueLandBuildingsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>3212599</TotalRevEtcAuditedFinclStmtAmt>
      <DonatedServicesAndUseFcltsAmt>48054</DonatedServicesAndUseFcltsAmt>
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      <TotalRevenuePerForm990Amt>3164545</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>1793456</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>48054</DonatedServicesUseFcltsAmt>
      <ExpensesNotReportedAmt>48054</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1745402</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>1745402</TotalExpensesPerForm990Amt>
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    <IRS990ScheduleJ documentId="RetDoc5">
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOHN AMOS</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>159868</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>20392</DeferredCompensationFlngOrgAmt>
        <TotalCompensationFilingOrgAmt>180260</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="RetDoc6">
      <BusTrInvolveInterestedPrsnGrp>
        <NameOfInterested>
          <PersonNm>AMY MATHEWS AMOS</PersonNm>
        </NameOfInterested>
        <RelationshipDescriptionTxt>OFFICER'S WIFE</RelationshipDescriptionTxt>
        <TransactionAmt>6700</TransactionAmt>
        <TransactionDesc>GRANT WRITER</TransactionDesc>
        <SharingOfRevenuesInd>false</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE L, PART V</FormAndLineReferenceDesc>
        <ExplanationTxt>AMY MATHEWS AMOS IS THE SPOUSE OF SKYTRUTH'S PRESIDENT, JOHN AMOS. SHE WAS ENGAGED AS A CONTRACTOR TO ASSIST WITH WRITING GRANT PROPOSALS AND REPORTS, AND PROVIDE STRATEGIC COMMUNICATIONS ADVICE AND OTHER COMMUNICATIONS SUPPORT. SHE REPORTED TO SKYTRUTH'S CHIEF OPERATING OFFICER AND THE ARRANGEMENT WAS AT ARM'S LENGTH.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="RetDoc7">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>SKYTRUTH'S MISSION IS TO MOTIVATE AND EMPOWER NEW CONSTITUENCIES FOR ENVIRONMENTAL PROTECTION. WE USE SCIENTIFICALLY CREDIBLE SATELLITE IMAGES AND OTHER VISUAL TECHNOLOGIES TO CREATE COMPELLING PICTURES THAT VIVIDLY ILLUSTRATE ENVIRONMENTAL IMPACTS AND PROVIDE THESE IMAGES AND SUPPORTING DATA TO ENVIRONMENTAL ADVOCATES, THE MEDIA, DECISIONMAKERS, AND THE PUBLIC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF FORM 990 IS PROVIDED TO EACH MEMBER OF THE FINANCE COMMITTEE BY EMAIL PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD GOVERNANCE COMMITTEE CHAIR, IN A CONSULTATION WITH THE BOARD FINANCE COMMITTEE CHAIR AND CHAIR OF THE BOARD, REVIEWS THE CEO'S COMPENSATION HISTORY, RESPONSIBILITIES, AND PERFORMANCE AS WELL AS THE STATED GOALS OF THE CEO (PREPARED IN CONSULTATION WITH THE BOARD EVERY TWO YEARS). A REPORT AND ANY RECOMMENDATIONS ARE MADE AT THE 4TH QUARTER BOARD MEETING CORRESPONDING TO THE END OF A TWO YEAR PERFORMANCE PERIOD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>DOCUMENTS ARE MADE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSULTANT SERVICES 428,774 1,500 0 RETIREMENT PLAN ADMIN 198 8,017 7 RECRUITING 1,622 65,637 58 PAYROLL PROCESSING 13,343 1,040 1,498 TOTAL 443,937 76,194 1,563</ExplanationTxt>
      </SupplementalInformationDetail>
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  </ReturnData>
</Return>
