For two decades now, we’ve failed to seriously address climate change. So the planet just keeps warming—and it could get very bad. Picture major droughts, calving of gigantic ice sheets, increasingly dramatic sea level rise, and much more.

Against this backdrop, the idea of a technological fix to solve the problem—like seeding the stratosphere with reflective sulfur particles, so as to reduce sunlight—starts to sound pretty attractive. Interest in so-called “geoengineering” is growing, and so is media attention to the idea. There are even conspiracy theorists who think a secret government plan to geoengineer the planet is already afoot.

Leading scientists, meanwhile, have begun to seriously study our geoengineering options—not necessarily because they want to, but because they fear there may be no other choice.

This week's episode of Point of Inquiry with host Chris Mooney features Eli Kintisch, who has followed these scientists’ endeavors—and their ethical quandaries—like perhaps no other journalist. He has broken stories about Bill Gates’ funding of geoengineering research, DARPA’s exploration of the idea, and recently attended the historic scientific meeting in Asilomar, California, where researchers gathered to discuss how to establish guidelines for geoengineering research.

And now, the full story is related in Kintisch’s new book Hack the Planet: Science’s Best Hope—or Worst Nightmare—for Averting Climate Catastrophe.

Eli Kintisch is a staff writer for Science magazine, and has also written for Slate, Discover, Technology Review, and The New Republic. He has worked as a Washington correspondent for the Forward and a science reporter for the St. Louis Post-Dispatch. In 2005 he won the Space Journalism prize for a series of articles on private spaceflight. He lives in Washington, D.C.