It’s a story about the stunning gains the poorest people in the world have made over the last 25 years.
Two years ago, I invited Gates Notes readers to try to beat my score on a climate change quiz. Since then, I’ve learned a lot while writing my book How to Avoid a Climate Disaster. My thinking on the subject has evolved, and I discovered some mind-blowing facts. So here’s a new climate quiz. I hope you have as much fun as I did with this and the book.