Mark Hertsgaard

Editor’s note: The chat’s now over, but you can replay it in full.

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Jump into our live chat with renowned environmental journalist Mark Hertsgaard about his new book, Hot: Living Through the Next Fifty Years on Earth. Find out what he thinks is in store for “Generation Hot,” the 2 billion or so people under the age of 25 who are facing life in a climate-changed world. And find out what gives him hope for the future — there’s a lot that does! Read a Grist post about the book.

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