| Name | First Name | Last Name | Professional Affiliation | |
|---|
| Gray, Thomas | Thomas | Gray | Citizens Climate Lobby, Buddhist Peace Fellowship | View |
| Green, Elisabeth | Elisabeth | Green | | View |
| Gregoire, Charles | Charles | Gregoire | FacingFuture.Earth, ClimateEmergencyForum.org | View |
| Grenier, Celine | Celine | Grenier | | View |
| Grozier, Theodore | Theodore | Grozier | | View |
| Gugino, Martin | Martin | Gugino | | View |
| Gutierrez, Adriana | Adriana | Gutierrez | | View |
| Haase, Elizabeth | Elizabeth | Haase | | View |
| Hadley, Elee | Elee | Hadley | | View |
| Hadley, Neal | Neal | Hadley | | View |
| Hago, Wilson | Wilson | Hago | Hago Energetics, Inc. | View |
| Haley, Azura | Azura | Haley | | View |
| Haller, Marion | Marion | Haller | | View |
| Halpin, Beki | Beki | Halpin | | View |
| Hamilton, Ted | Ted | Hamilton | Staff attorney | View |
| Hammond, Dan | Dan | Hammond | | View |
| Handler, Marvin | Marvin | Handler | | View |
| Handley, Anne | Anne | Handley | | View |
| Hansen, James | James | Hansen | Director, Climate Science, Awareness and Solutions, Earth Institute, Columbia University. Formerly, Director of the NASA Goddard Institute for Space Studies. | View |
| Hansen, Marcus | Marcus | Hansen | | View |
| Hanson, Chad | Chad | Hanson | Research Ecologist | View |
| Hanson, Tyler | Tyler | Hanson | | View |
| Hariton, Jonah | Jonah | Hariton | | View |
| Harlan, Jim | Jim | Harlan | | View |
| Harnden, Warren | Warren | Harnden | | View |
| Hart, Bethany | Bethany | Hart | | View |
| Hayley, Reggie | Reggie | Hayley | | View |
| Healy, Jack | Jack | Healy | | View |
| Heath, Michelle | Michelle | Heath | | View |
| Heede, Richard | Richard | Heede | Climate Accountability Institute | View |
| Helal, Julia | Julia | Helal | | View |
| Hendricks, Bob | Bob | Hendricks | Sierra Club, Citizens Climate Lobby | View |
| Heririton, Jonah | Jonah | Heririton | | View |
| Herman, Barbara | Barbara | Herman | | View |
| Herman, Lisa | Lisa | Herman | CAMFT
APA
IEATA | View |
| Hermer, Alexander | Alexander | Hermer | Remineralize The Earth | View |
| Hernandez, Shiloh | Shiloh | Hernandez | | View |
| Heroy, David | David | Heroy | | View |
| Herrington, Stefanie | Stefanie | Herrington | Santa Barbara County Commission for Women | View |
| Hess, Robert | Robert | Hess | | View |
| Hess, Ron | Ron | Hess | | View |
| Hickey, Sharon | Sharon | Hickey | | View |
| Higgs, Jessica | Jessica | Higgs | | View |
| Hine, Patricia | Patricia | Hine | 350 Eugene | View |
| Hoffman, Donna | Donna | Hoffman | Communications Research Contractor | View |
| Hogan, Patrick | Patrick | Hogan | | View |
| Honea-Boles, Patricia | Patricia | Honea-Boles | | View |
| Honn, Tyler | Tyler | Honn | | View |
| Hopkins, Taylor | Taylor | Hopkins | | View |
| Howie, Ellen | Ellen | Howie | ICA | View |
