The author is a well-known environmental journalist and staff writer for the New Yorker. In this book, she travels to and interviews assorted scientists and entrepreneurs who are looking for ways to remove carbon dioxide from the atmosphere, make the stratosphere more opaque, alkalinize the ocean, etc. in various desperate seeming, but perhaps ultimately necessary, ways. She doesn't pull any punches and you probably shouldn't read this if you’re feeling down. Her work on the book was apparently interrupted by the pandemic and it was shorter than I expected it to be.