About Us

About Us

Founded in 2021, the Healthy Planet Action Coalition (HPAC) is an international group of over 200 participants from over a dozen countries advocating urgent action to restore a safe and healthy planet. Our motto is:


Cool, reduce, and remove to restore the climate.

Later is too late!


We advocate the world community urgently come together to carry out an equitable, science-based plan of action that includes what HPAC calls, the Climate Triad:


The goal of these actions, along with enhanced and transformative adaptation and regeneration measures, is to reduce the average global temperature increase to well below 1°C in the coming decades. Doing so will sharply reduce weather extremes, slow or stop the collapse of key ecosystems, and help ensure a livable planet for humanity and the natural world.


Please read our Vision for a Healthy Planet and Understanding the Urgent Need for Direct Climate Cooling for more details and a timetable for action.


We welcome and encourage participation in HPAC through our online discussion group and our working groups. We frequently host some of the most knowledgeable scientists, technologists, decision-makers, and climate advocates on the planet to engage in discussions on direct climate cooling, greenhouse gas removal, global governance, emissions reduction, equity and justice, ecosystem restoration, and other cutting-edge climate issues. 


If you or your organization would like to learn more about HPAC, please contact us via healthyplanetaction@gmail.com.


HPAC is led by a Steering Circle consisting of the following individuals:


Ron Baiman is a retired Associate Professor of Economics at Benedictine University in Lisle, IL outside of Chicago. He a founding member of the Chicago Political Economy Group (CPEG) where preprints of his latest papers (published in the Review of Radical Political Economy) including: “Our Two Climate Crises Challenge” (2022), “In Support of a Renewable Energy and Materials Economy” (2021) “Financial Bailout Spending Would Have Almost Paid for Thirty Years of Global Green New Deal Climate: Triage, Regeneration, and Mitigation” (2020), can be found. Ron Baiman holds a Ph.D., and an M.A. with Honors, both in Economics from the New School for Social Research in New York City, did graduate work in Mathematics at the U.C. Berkeley, and graduated Magna Cum Laude with a B.Sc. in Mathematics and Physics from Hebrew University, Israel. Ron is an HPAC co-founder.

Dr. Leslie Field is founder of the Bright Ice Initiative. An inventor with over 60 issued patents, she holds BS & MS degrees in Chemical Engineering from MIT, and MS & PhD degrees from UC Berkeley. She has taught for 12 years on climate and engineering at Stanford University. Deeply committed to innovation, inclusive collaboration, and perseverance to restore a habitable world, Dr. Field received the inaugural Mark Shannon Grand Challenges Award from the Transducers Research Foundation for her work. Bright Ice Initiative is evaluating localized and low-impact approaches to increase the reflectivity of glacial ice and snow to slow their melt.  The Initiative works in close collaboration with Indigenous and local communities, universities, students, scientists, non-profits, and governmental groups with expertise in local conditions and cultures, glaciology, meteorology, and climate.  They aim to co-develop and evaluate local solutions that work for each community’s conditions and challenges.  Dr. Field is an ad hoc member of the HPAC Steering Circle.

Michael MacCracken has been serving on a pro bono basis as Chief Scientist for Climate Change Programs with the Climate Institute since his retirement in 2002. An alum of Princeton (B.S.E., 1964) and the University of California Davis (Ph.D., 1968), he led climate change studies at the Department of Energy's Lawrence Livermore National Laboratory from 1968-93 and then served as senior scientist with the interagency Office of the U.S. Global Change Research Program from 1993-2002 and successively as the executive director of the Office from 1993-97 and executive director of the first US national assessment coordination office from 1997-2001. From 2003-07, he served as president of the International Association of Meteorology and Atmospheric Sciences. 

Bruce Melton PE is a professional engineer, environmental researcher, filmmaker, climate science education specialist, author, and director of the Climate Change Now Initiative founded in 2005. He has written over 600 reviews of academic climate science, and has recently been involved in ground breaking climate policy development where he was awarded a special achievement award by Sierra Club for helping in the establishment of new climate restoration policy and a safer limit to warming of "less than 1.0 degrees C above normal," that reverses or stabilizes already initiated ecological collapse and climate tipping activation, and restores extreme weather mayhem back to its former rare levels. He travels North America seeking climate change impacts and his recent award-winning film project, Climate Change Across America, can be seen at ClimateDiscovery.org, (https://www.climatediscovery.org/) along with his counterintuitively beautiful climate change photography at ClimateChangePhoto.org (https://climatechangephoto.org).

Suzanne Reed has served as a Chief of Staff in the California State Legislature, California Policy Director for the Washington DC-based Center for Clean Air Policy (CCAP), and, earlier in her career, as Senior Energy Advisor in the California Governor’s Office of Planning and Research. Appointed by Governor Jerry Brown to the California Energy Commission in 1977, she led a variety of efforts to accelerate alternative energy development and energy conservation.  Among them were development of first-in-the-nation residential building energy conservation standards (Title 24) that served as a model throughout the country. Before relocating to California in 1976, Suzanne was a professional staff member on the US Senate Interior and Insular Affairs Committee (now Energy and Natural Resources) and a Legislative Aide to Senator Joe Biden (D-DE).  She holds a BA from Smith College where she majored in biology, and a master’s degree from Yale School of Forestry and Environmental Studies (now School of the Environment).  Suzanne is an HPAC co-founder. 

Herb Simmens has been a city manager, county administrator, chief planner for the state of New Jersey, and on the faculty of two universities. He is the author of A Climate Vocabulary of the Future. He holds degrees from the Wharton School of the University of Pennsylvania and the School of Public and International Affairs of Princeton University, and also studied at the London School of Economics. He lives in Silver Spring, Maryland. Herb is an HPAC co-founder.

Robert Tulip has a Master of Arts Honours Degree from Macquarie University in ontology and ethics and a Graduate Diploma in Foreign Affairs and Trade from Monash University.  He worked for thirty years in the Australian Public Service in international development, including policy and program management across a number of different sectors and countries, especially in Papua New Guinea.  He has been working in climate engineering since 2007, when his work on forests and climate led him to see large scale ocean-based algae production as a decisive technology for climate stability.  

Dr. Brian von Herzen is the founder and Executive Director of the Climate Foundation, an organization focused on developing nature-based global food security solutions and associated regeneration of ecosystem services and measuring carbon export of these regenerative processes in seas and soils.  Over the past few years, the Climate Foundation has pioneered the development of XPRIZE-winning Marine Permaculture deepwater irrigation systems to restore natural upwelling, kelp forests, coral reefs and seaweed forests, regenerating fisheries and the ocean’s ability to fix carbon scalably. Brian has a PhD from Caltech in planetary sciences and engineering, and a Physics degree, magna cum laude, from Princeton University. An inventor with over 30 patents issued, he is applying three decades experience designing systems to develop a chip in Silicon Valley to be used with regenerative Marine Permaculture vessels.