There is too much at stake for us to stay silent. Human-caused climate change threatens America’s economy, national security, and public health and safety. That's why we and over 800 of our colleagues, all of whom work on climate, energy, or Earth science, have written an open letter (read here) urging Donald Trump to take six key steps to address climate change:

1. Make America a clean energy leader.
2. Reduce carbon pollution and America's dependence on fossil fuels.
3. Enhance America's climate preparedness and resilience.
4. Publicly acknowledge that climate change is a real, human-caused, and urgent threat.
5. Protect scientific integrity in policymaking.
6. Uphold America's commitment to the Paris Climate Agreement.

Please join us in urging President Trump to #ActOnClimate by signing this petition.

Thank you,

• Dr. Suzanne P. Anderson, Professor of Geography, Institute of Arctic and Alpine Research, University of Colorado at Boulder
• Dr. Catherine Gautier, Professor Emerita, Department of Geography, University of California Santa Barbara
• Dr. Mark Z. Jacobson, Professor of Civil and Environmental Engineering and Director of the Atmosphere/Energy Program, Stanford University
• Dr. Dan Kammen, Energy and Resources Group and Goldman School of Public Policy, University of California, Berkeley; Science Envoy, US State Department
• Dr. Michael E. Mann, Distinguished Professor and Director of the Earth System Science Center, Pennsylvania State University
• Dr. R. Pamela Reid, Professor of Marine Geosciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami
• Dr. Cindy Shellito, Professor of Meteorology, University of Northern Colorado
• Dr. Richard C. J. Somerville, Distinguished Professor Emeritus, Scripps Institution of Oceanography, University of California San Diego
• Dr. Sarah Ann Woodin, Carolina Distinguished Professor Emerita, Department of Biological Sciences, University of South Carolina