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The window to limit global temperature rise is closing

President Biden told world leaders this week the U.S. would fulfill its promise to slash greenhouse gas emissions in half by the end of the decade. Will that happen? How much would that matter?

In this episode, host Ben Kieffer talks with two distinguished climate scientists, Jerry Schnoor of the University of Iowa and Gene Takle of Iowa State University and climate policy researcher Scotts Pack of the University of Iowa

President Biden joinied leaders from over 100 countries in Glasgow, Scotland for the start of COP26 -- the latest UN Climate change conference. The conference kicked off on the heels of the G20 summit in Rome which concluded with a statement that urged “meaningful and effective action on climate change.” The UN Secretary General, António Gutierres had a stark warning about what has developed.

“It's time to say enough. Enough of brutalizing biodiversity. Enough of killing ourselves with carbon. Enough of treating nature like a toilet. Enough of burning and drilling and mining our way deeper. We are digging our own graves,” Guterres said.


  • Jerry Schnoor, professor, civil and environmental engineering, co-director of Center for Global & Regional Environmental Research, University of Iowa
  • Scott Spak, associate professor of planning and public affairs, University of Iowa
  • Gene Takle, emeritus distinguished professor of agronomy, Iowa State University
Ben Kieffer is the host of IPR's River to River
Matthew was a producer for IPR's River to River and Talk of Iowa