| 2025 | Smart Surfaces Coalition | 990 | Director | 3 | $0 | $0 | View return |
| 2024 | Smart Surfaces Coalition | 990 | Director | 3 | $0 | $0 | View return |
| 2024 | Smart Surfaces Coalition | 990 | Director | 3 | $0 | $0 | View return |
| 2024 | Ecoamerica | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Arthur F Burns Fellowship Program Inc. | 990 | Honorary Chairman | 0.2 | $0 | $0 | View return |
| 2024 | Environmental Defense Action Fund | 990 | Chair Emeritus | 2 | $0 | $0 | View return |
| 2024 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Arthur F Burns Fellowship Program Inc. | 990EZ | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2023 | Ecoamerica | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Smart Surfaces Coalition | 990 | Director | 3 | $0 | $0 | View return |
| 2023 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Environmental Defense Action Fund | 990 | Chair Emeritus | 2 | $0 | $0 | View return |
| 2022 | Ecoamerica | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Climate Advisers Trust | 990 | Board Member (To 05/2022) | 1 | $0 | $0 | View return |
| 2022 | Smart Surfaces Coalition | 990 | Director | 3 | $0 | $0 | View return |
| 2022 | Environmental Defense Action Fund | 990 | Chair Emeritus | 2 | $0 | $0 | View return |
| 2022 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Arthur F Burns Fellowship Program Inc. | 990EZ | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2021 | Ecoamerica | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Climate Advisers Trust | 990 | Board Member (Former Chairman) | 1 | $0 | $0 | View return |
| 2021 | Smart Surfaces Coalition | 990 | Director | 3 | $0 | $0 | View return |
| 2021 | Environmental Defense Action Fund | 990 | Chair Emeritus | 2 | $0 | $0 | View return |
| 2021 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | Arthur F Burns Fellowship Program Inc. | 990EZ | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2020 | Smart Surfaces Coalition | 990 | Director | 3 | $0 | $0 | View return |
| 2020 | Ecoamerica | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Climate Advisers Trust | 990 | Chairman | 1 | $0 | $0 | View return |
| 2020 | Arthur F Burns Fellowship Program Inc. | 990EZ | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2020 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Environmental Defense Action Fund | 990 | Chair Emeritus | 2 | $0 | $0 | View return |
| 2019 | Ecoamerica | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Arthur F Burns Fellowship Program Inc. | 990 | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2019 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Environmental Defense Action Fund | 990 | Chair Emeritus | 2 | $0 | $0 | View return |
| 2018 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Climate Advisers Trust | 990 | Chairman | 1 | $0 | $0 | View return |
| 2018 | Ecoamerica | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Arthur F Burns Fellowship Program Inc. | 990EZ | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2018 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2017 | Ecoamerica | 990 | Chairman | 1.5 | $0 | $0 | View return |
| 2017 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The Washington Ballet | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Arthur F Burns Fellowship Program Inc. | 990EZ | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2017 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2016 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Ecoamerica | 990 | Chairman | 1.5 | $0 | $0 | View return |
| 2016 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2016 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2016 | The Washington Ballet | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Ecoamerica | 990 | Chairman | 1.5 | $0 | $0 | View return |
| 2015 | Population Services International | 990 | Director, Chair | 2 | $0 | $0 | View return |
| 2015 | The Washington Ballet | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2015 | Resources for the Future Inc. | 990 | Vice Chair | 0.19 | $0 | $0 | View return |
| 2015 | The Nature Conservancy | 990 | Secretary (Part Year) | 1 | $0 | $0 | View return |
| 2015 | Arthur F Burns Fellowship Program Inc. | 990EZ | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2014 | Population Services International | 990 | Director, Chair | 2 | $0 | $0 | View return |
| 2014 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2014 | Arthur F Burns Fellowship Program Inc. | 990EZ | Honorary Chairman | 0.5 | $0 | $0 | View return |
| 2014 | The Washington Ballet | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | The Nature Conservancy | 990 | Secretary | 1 | $0 | $0 | View return |
| 2014 | Resources for the Future Inc. | 990 | Vice Chair | 0 | $0 | $0 | View return |
| 2014 | Environmental Defense Action Fund | 990 | Co-Chairman | 2 | $0 | $0 | View return |
| 2013 | Population Services International | 990 | Director, Chair | 2 | $0 | $0 | View return |
| 2013 | Center for Climate and Energy Solutions Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Resources for the Future Inc. | 990 | Vice Chair | 0.22 | - | - | View return |
| 2013 | Environmental Defense Action Fund | 990 | Co-Chairman | 2 | $0 | $0 | View return |
| 2013 | Environmental Defense Fund Incorporated | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | The Nature Conservancy | 990 | Secretary | 1 | $0 | $0 | View return |