Last year was the hottest on record. 2024 is predicted to be another record year. Meanwhile, we are seeing the very real effects of our changing climate in more intense forest fires, and more severe and unpredictable weather. This has pushed the idea of geoengineering -- or deliberately intervening in climate systems -- closer to reality. Christopher Flavelle is a reporter for the New York Times. His work is part of a new series for the paper called “Buying Time,” a look at the risky ways humans are starting to manipulate nature to fight climate change. He joins Diane to talk about the perils and promise of these technologies.