CLIMATE HOUR – The Environmental Protection Agency’s 2009 Endangerment Finding is the foundation of the U.S. government’s legal authority to regulate greenhouse gas emissions and to combat climate change. This finding is why the United States has vehicle emission standards. It is why the U.S. adopted the Clean Power Plan. It is why the U.S. became a party to the Paris Climate Agreement.

Columbia University reports that the second Trump Administration has implemented significant rollbacks of environmental regulations, including over 200 climate-related laws. In July of 2025, Trump’s Department of Energy released a report written by a newly-formed Climate Working Group, composed of five scientists known for their opposition to mainstream climate science. On that very same day, Trump’s EPA cited this Climate Working Group Report in their announcement that they were rescinding the 2009 Endangerment Finding and repealing all greenhouse gas emission standards for vehicles and engines.

Scientists around the world, including a group of 85 scientists led by Dr. Andrew Dessler and Dr. Robert Kopp, have rallied against the Climate Working Group report and repeal of the Endangerment Finding, concluding that the CWG report contained numerous instances of cherry-picking data, overemphasis of uncertainties, misquoting peer-reviewed research, and a general dismissal of the vast majority of decades of peer-reviewed research.

Join host, Bob Grove, and Dr Andrew Dessler to discuss the Environmental Protection Agency’s repeal of the 2009 Endangerment Finding.

Dr Dessler is a climate scientist in the Department of Atmospheric Sciences at Texas A&M University, and Director of Texas A&M’s Texas Center for Climate Studies. He holds a Bachelor degree in physics from Rice University and a Ph.D. in chemistry from Harvard University. Dr Dessler has served as a Senior Policy Analyst in the White House Office of Science and Technology Policy, and on NASA’s Earth Science Advisory Committee. Dr Dessler is a recipient of the American Geophysical Union’s Climate Communication Award, and is currently President of the AGU’s Global Environmental Change section.

• https://artsci.tamu.edu/atmos-science/contact/profiles/andrew-dessler.html
• https://www.theclimatebrink.com
• https://www.amazon.com/dp/B0C6JPDD24

View other Climate Hour episodes at www.ClimateHour.net.

CLIMATE HOUR – Our world is overflowing with archeological ruins. Not just Roman and Egyptian, but Akkadian, Assyrian, Vedic, Minoan, Phoenician, Aztec, Byzantine, Visigoth and more. Literally hundreds of apex human civilizations that are now empty shells haunted by archeologists trying to understand what went wrong. We can probably assume that most of these civilizations experienced societal collapse because of some combination of environmental disaster, disease, and war. Probably not that different than the conditions we see around us today.

Today, we not only have a front row seat for the potential demise of world globalism, but we’re riding the crest of the biggest climate upheaval in recorded history. And, as if that’s not enough, we’re back into a nuclear arms race and perched on the brink of full artificial intelligence. We’ve all heard that history repeats itself. And, historically, 99.9% of all known species have gone extinct. Literally hundreds of human civilizations have collapsed. What are we doing today that is repeating history, and how do we stop doing it.

Join host, Bob Grove, and Dr Luke Kemp to discuss the History And Future Of Societal Collapse.

Dr Kemp is an author and Research Affiliate with the Centre for the Study of Existential Risk at the University of Cambridge. Luke studies the collapse of civilizations in the past, and the climate issues & emerging technologies of the future. His new book, Goliath’s Curse, draws from over 300 case studies of collapsed civilizations. He argues that states collapse when captured by corrupt elites who seize control of private and community resources, leading to extreme political, economic and social inequality. Luke holds a PhD in international relations from the Australian National University. He advised the Australian Parliament in the ratification of the 2015 Paris Agreement on climate, and has led foresight studies for multiple international organizations, including the World Health Organization and the Convention on Biological Diversity.

• https://www.amazon.com/Goliaths-Curse-History-Societal-Collapse/dp/0593321359
• https://www.amazon.com/dp/B0C6JPDD24

View other Climate Hour episodes at www.ClimateHour.net.

CLIMATE HOUR – For decades we’ve lived in a world where corporations actively deny proven independent science in order to promote profits. For instance, there’s lots of documentation of oil & gas industry scientists predicting current global warming events with amazing accuracy, as early as the 1950s. And that these petroleum industries chose to actively deny and negate their own research in order to maximize their long-term profits.

In fairness, we should expect corporations to put their profits first. That’s just how capitalism works. But we should be able to rely on federal agencies and consumer protection groups to keep the corporate greed in check. That’s how it should work. Checks & balances.

So what happens when we can no longer depend on federal agencies to promote proven independent science. What happens when groups like the EPA, FDA, CDC, NOAA and other repositories of independent science delete their existing bodies of scientific fact and replace it with pseudo-science driven by egotistical impulse or corporate greed. How do we continue to preserve and access years of proven scientific truth?

Join host, Bob Grove, and Gretchen Goldman, President and CEO of the Union of Concerned Scientists, to discuss UCS’ Independent Science Initiative fighting to preserve years of proven truth.

Dr Goldman holds a PhD and Master of Science in Environmental Engineering from the Georgia Institute of Technology, and also holds a Bachelor of Science in atmospheric science from Cornell University. She has served in the White House as the Assistant Director for Environmental Science, Engineering, Policy, and Justice in the Climate and Environment Division of the Office of Science and Technology Policy. And she has served as the Climate Change Research and Technology Director at the U.S. Department of Transportation.

• https://www.ucs.org/
• https://www.amazon.com/dp/B0C6JPDD24

View other Climate Hour episodes at www.ClimateHour.net.