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St. Paul, Minn.

Climate One series: Eating in the Heat

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Frost on the backs of cattle.
Frost adorns the backs of cattle at Paul Knuti's farm on Monday, January 6, 2014 near Embarrass, Minn. Temperatures at the time were 25 below with wind chills near 50 below.
Derek Montgomery / For MPR News

From the Commonwealth Club of California's Climate One series: "Eating in the Heat."

Part 1: Tom Vilsack and Michael Froman on Agriculture and trade. Part 2: David Robinson Simon and Tim Koopman on what meat has to do with climate change. Part 3: Robert Fraley, Nathanael Johnson, Andrew Kimbrell and Jessica Lundberg on GMO's.