| Name | First Name | Last Name | Professional Affiliation | |
|---|
| Lowe, April | April | Lowe | | View |
| Lowell, Susan | Susan | Lowell | | View |
| Loyon, Margaret | Margaret | Loyon | | View |
| Loznak, Alexander | Alexander | Loznak | University of Oregon School of Law, Climate Protection and Restoration Initiative | View |
| Lucas, Steve | Steve | Lucas | | View |
| Luce, Vern | Vern | Luce | | View |
| Luisi, Maryann | Maryann | Luisi | | View |
| Lyndaker, Gary | Gary | Lyndaker | | View |
| M Valdez, Regina | Regina | M Valdez | | View |
| Macdonald, Judith | Judith | Macdonald | | View |
| Maclaren, Elizabeth | Elizabeth | Maclaren | | View |
| Maclenna, Justin | Justin | Maclenna | | View |
| Macquarie, Charles | Charles | Macquarie | APWA | View |
| Madz, Mickey | Mickey | Madz | | View |
| Maginn, Melinda | Melinda | Maginn | | View |
| Maier, Meg | Meg | Maier | | View |
| Maifeld-Carucci, Akeo | Akeo | Maifeld-Carucci | | View |
| Malej, Milan | Milan | Malej | independent researcher / eng. in pension | View |
| Malik, Sania | Sania | Malik | | View |
| Malone, Thomas | Thomas | Malone | | View |
| Mandell, Robert | Robert | Mandell | 350.org | View |
| Mann, Roberta | Roberta | Mann | University of Oregon School of Law | View |
| Mann, Sandra | Sandra | Mann | | View |
| Manning, Robert | Robert | Manning | | View |
| Mannschott, Elisabeth | Elisabeth | Mannschott | | View |
| Marcuse, Harold | Harold | Marcuse | | View |
| Marmontello, Risa | Risa | Marmontello | Pa Stands Up, Democratic Party | View |
| Marquardt, Alexander | Alexander | Marquardt | Co-Founder & Staff Attorney, Climate Defense Project | View |
| Marshall, Dolly | Dolly | Marshall | | View |
| Marshall, Stephen | Stephen | Marshall | | View |
| Martin, Case | Case | Martin | | View |
| Martin, Kai | Kai | Martin | | View |
| Martin, Kali | Kali | Martin | Climate Protection and Restoration Initiative | View |
| Martin, Ronald | Ronald | Martin | | View |
| Massari, Antonella | Antonella | Massari | Facing The Future, 1 Million Women, The Green Party of England and Wales | View |
| Mather, Savannah | Savannah | Mather | | View |
| Matteson, Nanou | Nanou | Matteson | | View |
| Maxwell, Aiden | Aiden | Maxwell | | View |
| Maxwell, Sarah | Sarah | Maxwell | Facing Future | View |
| Mayans, Elizabeth | Elizabeth | Mayans | | View |
| Mayer, Dorothy | Dorothy | Mayer | | View |
| Maynes, Ashley | Ashley | Maynes | | View |
| McAdam, Kyle | Kyle | McAdam | | View |
| McCarthy, Dennis | Dennis | McCarthy | | View |
| McChrystal, Karen | Karen | McChrystal | susainblelivinginstitute.org
hiddenspringspress.com | View |
| McClain, Maria | Maria | McClain | | View |
| McColgan, Annie | Annie | McColgan | | View |
| McComb, Jason | Jason | McComb | | View |
| McCullough, Alexis | Alexis | McCullough | | View |
| McDougall, Georgia | Georgia | McDougall | | View |
