In this episode of Hot Spots with Kay Brown, Harvard University Professor John Holdren joins Kay to examine the sweeping consequences of Donald Trump’s sustained attacks on science, climate research, and global cooperation. Holdren explains that climate change is no longer a future threat but a present crisis, already inflicting economic, environmental, and human damage worldwide. He outlines how the United States’ withdrawal from international climate leadership has weakened global efforts to limit warming and undermined America’s credibility with allies. The conversation explores the dismantling of federal science agencies, the erosion of research infrastructure, and the silencing of scientific information through defunded programs and altered public data. Holdren warns that these actions threaten long-term prosperity, public health, national security, and democratic governance. Despite setbacks, he highlights how states, cities, universities, and markets have worked to resist federal backsliding—while stressing that protecting elections and democratic institutions remains essential to reversing the damage and restoring climate leadership.

Takeaways:

1. Climate change is already causing widespread, visible harm worldwide
2. Fossil fuel combustion is the primary driver of current warming
3. U.S. withdrawal from global climate leadership has damaged international trust
4. Federal science agencies and research programs have been systematically dismantled
5. Attacks on universities and public data limit public understanding of science
6. Scientific innovation is central to economic growth and national security
7. States, cities, and institutions can partially offset federal inaction
8. Protecting democratic elections is critical to restoring science-based policy

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