The Best Technology For Fighting Climate Change? Trees

When people talk about technologies that might offset climate change, they often evoke not-yet-invented marvels, like planes spraying chemicals into the atmosphere or enormous skyscrapers gulping carbon dioxide from the clouds. Specifically, the two techniques it recommends are afforestation—planting trees where there were none before—and biochar—improving the soil by burying a layer of dense charcoal. It also cautioned, however, that these so-called “Negative Emissions Technologies” o