It’s Thanksgiving weekend, and for many podcasts, a week off. But we didn’t want to sock you with some re-run—or, worse, leave you with no episode at all. So David Pogue is here to offer a free chapter from his audio book, “How to Prepare for Climate Change.” You’ll hear the complete Introduction, which is designed to teach you the difference between mitigation and adaptation—and convince you to keep doing the former, but start doing the latter.