Aug 23, 2026
In this episode we speak with Tom Chi—physicist, engineer, former Google X leader, climate-tech investor, and author of Climate Capital. Chi describes witnessing the rapid bleaching and collapse of a Hawaiian coral reef, an experience that redirected his work toward . . .
Aug 16, 2026
In this episode we talk with Clare Farrell, co-founder of Extinction Rebellion. Clare reflects on XR’s origins, its rapid international rise, and how nonviolent direct action brought the reality and urgency of climate breakdown into mainstream public discussion.
Aug 09, 2026
Wildfires are entering a dangerous new phase. In this episode Madrid-based guest Alfonso Soria joins our regular panel to examine the intensifying wildfire crises affecting Europe, North America, and the boreal North.
Aug 02, 2026
Learn about what it's like at the bottom of the world with Antarctic facilities engineer and climate restoration advocate Ray Sundby, who spent four winters at McMurdo Station . . .
Jul 26, 2026
In this episode we introduce the Climate Intervention Environmental Impact Fund (CIEIF), a unique family-funded initiative that supports climate intervention field tests by financing rigorous . . .
Jul 19, 2026
Herb Simmens speaks with climate scientist Dr. Ken Caldeira at the first Climate Systems Engineering Conference at the University of Chicago. Caldeira reflects on his pioneering role in solar geoengineering . . .
Jul 12, 2026
In this episode we examine North America’s extraordinary early‑summer heat, floods, fires, and cascading impacts.
Jul 05, 2026
In this episode we examine how repeated spring and early‑summer heatwaves across Europe are undermining crops, livestock, rivers, and food prices.
Jun 28, 2026
Europe is in the grip of a record‑shattering heatwave, with France, Spain, the UK and much of the continent seeing all‑time and June temperature records fall in rapid succession.
Jun 21, 2026
This special episode of Climate Emergency Forum welcomes back co‑founder and longtime host Regina after a long absence as she completes her master’s degree in sustainability at Columbia University in New York.