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      <OtherExpenses>
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      <OtherAssets>
        <Description>INTANGIBLE ASSETS</Description>
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      <OtherAssets>
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        <Identifier>Part V, Line 4:</Identifier>
        <ReturnReference>Description of Intended Use of Endowment Funds:</ReturnReference>
        <Explanation>Earthwatch's endowment assets are invested in a manner that is intended to produce long-term yields while assuming a conservative risk. The endowment assets are used to generate income, based on an approved spending policy of the board used to support program and administrative activities of Earthwatch.</Explanation>
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        <Identifier>Part X:</Identifier>
        <ReturnReference>Description of Uncertain Tax Positions Under FIN 48:</ReturnReference>
        <Explanation>Earthwatch follows the Accounting for Uncertainty in Income Taxes standard which requires Earthwatch to report uncertain tax positions, related interest and penalties, and to adjust its assets and liabilities related to unrecognized tax benefits and accrued interest and penalties accordingly. As of September 30, 2010, Earthwatch determined that there are no material unrecognized tax benefits to report. No income tax provision has been included in the accompanying financial statements. Earthwatch is subject to audit by tax authorities. Earthwatch believes that they have appropriate support for the positions taken on their information returns.</Explanation>
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      <GrantsToOrgsOutsideUS>
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      <GrantsToOrgsOutsideUS>
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      <GrantsToIndOutsideUS>
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        <Identifier>Procedure for Monitoring Grants in the U.S.:</Identifier>
        <ReturnReference>Part I, Line 2:</ReturnReference>
        <Explanation>Schedule I, Part I, Line 2: 1. Receive both solicited and unsolicited preliminary applications from the science community - Applications, including draft budget, are reviewed and evaluated on a rolling basis - Initial business review by Field Management, Research, Development/Corporate Programs, Volunteer Programs, Engagement, and Finance Departments; recommendation submitted which is accepted or rejected by the International Executive Team. - If decision is to invite full proposal, we invite the scientist to submit a detailed proposal. - Upon receipt of proposal, it is sent to be externally reviewed to establish scientific worth (some exceptions) - Budget and all fielding details are confirmed - Final details approved by internal review committee (if recommend to reject at this point, must go back to the International Executive Team) 2. Selected grantees are notified 3. Payments made to grantees per budget and timeline of projects 4. At end of field season, grantee required to submit receipts to document spending of funds 5. Budgets and fielding details are re-evaluated and approved on a yearly basis. 6. Projects re-submit a scientific proposal every 3-5 years (some exceptions)</Explanation>
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          <BusinessNameLine1>brian rosborough</BusinessNameLine1>
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        <DescriptionOfTransaction>management consulting</DescriptionOfTransaction>
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      <GeneralExplanation>
        <Identifier>Form 990, Part III, line 3</Identifier>
        <ReturnReference>Changes in Program Services</ReturnReference>
        <Explanation>In fiscal year 2010, Earthwatch consolidated all program areas into one unified program in order to more accurately express our mission and streamline our processes. Through the intersection of research, conservation and education, Earthwatch is able to engage people worldwide and to promote the understanding and action necessary for a sustainable environment. Earthwatch's program is most effective when people come together to participate in hands-on field research and conservation activities, which contributes to their own environmental education in the process. Additionally, merging the program areas allows Earthwatch to become a more financially responsible, effective and agile organization.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 11</Identifier>
        <Explanation>THE FORM 990 IS PROVIDED TO THE SENIOR LEADERSHIP TEAM FOR REVIEW AND THE FINANCE COMMITTEE FOR REVIEW AND APPROVAL. THE CFO WILL THEN SIGN OFF FOR ELECTRONIC FILING OF THE FORM 990. A COPY OF THE FINAL SIGNED 990 WILL BE SENT TO ALL MEMBERS OF THE BOARD OF DIRECTORS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 12c</Identifier>
        <Explanation>the board of directors monitor and enforce compliance with the conflict of interest policy to ensure that all appropriate personnel have signed the forms for the current fiscal year.</Explanation>
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      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 15</Identifier>
        <Explanation>the compensation committee reviews and approves written employment contracts for all employees at the executive level. after employment contracts are approved by the compensation committee, the board of directors review and approve the compensation contracts.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section C, line 19</Identifier>
        <Explanation>earthwatch makes its governing documents, conflict of interest policy, and financial statements available to the public upon request.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VII, SECTION A:</Identifier>
        <Explanation>Earthwatch US compensated Earthwatch UK for the services of the international cfo, Gareth Price, in the amount of $53,803. the international cfo is an employee of earthwatch uk.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
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        <Explanation>THE BOARD OVERSEES THE SELECTION OF THE AUDITORS AND MEETS WITH THE AUDITORS AT THE CONCLUSION OF THE AUDIT TO REVIEW RESULTS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
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        <Explanation>EARTHWATCH INSTITUTE, INC. AND EARTHWATCH EUROPE (an unrelated U.K. non-profit entity) ORGANIZED AND INCORPORATED EARTHWATCH INTERNATIONAL, INC. (EARTHWATCH INTERNATIONAL). EARTHWATCH INTERNATIONAL HAS NO ASSETS AND HAD NO ACTIVITY AS OF AND FOR THE YEAR ENDED SEPTEMBER 30, 2010. THE BOARD OF DIRECTORS OF EARTHWATCH INTERNATIONAL CONSISTS OF THE BOARD MEMBERS OF EACH OF THE INCORPORATORS, WITH EACH INCORPORATOR HAVING EQUAL VOTING POWER. EARTHWATCH INTERNATIONAL'S PURPOSE IS TO PROVIDE INTERNATIONALLY COORDINATED GOVERNANCE AND ADMINISTRATION FOR THE BENEFIT OF ORGANIZATIONS THROUGHOUT THE WORLD THAT USE EARTHWATCH TRADEMARKS AND BRAND. EACH PARTY MAINTAINS ITS OWN INDEPENDENT GOVERNANCE AND FINANCIAL INTEGRITY. CERTAIN COSTS, KEY EXECUTIVES AND PROGRAM AND ADMINISTRATIVE STAFF SERVE BOTH EARTHWATCH US AND EARTHWATCH EUROPE AND COSTS ARE SHARED UNDER A MEMORANDUM OF AGREEMENT BETWEEN THE ORGANIZATIONS. AS SUCH, THE EXECUTIVE EMPLOYEES THAT ARE SHARED BETWEEN EARTHWATCH US AND EARTHWATCH EUROPE, THAT ARE PAID BY EARTHWATCH EUROPE, ARE LISTED ON FORM 990, PART VII, SECTION A, WITHOUT COMPENSATION. Likewise, the executive employees that are shared between earthwatch US and earthwatch europe, that are paid by earthwatch US, are listed on Form 990, Part Vii, Section A, at their full compensation amounts. Additionally, Earthwatch US reimbursed Earthwatch Europe for the services of their CFO. The amount listed on Form 990, Part VII, Section A represents the reimbursement of 50% of his salary that is being paid to him by Earthwatch Europe.</Explanation>
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