The environment, in many ways, is keeping pace with human industrialization. But will it last? Since humans came out of the trees and started chopping them down to make fire and houses, we’ve removed about 46 percent of the world’s forests. That’s a tragedy for bird habitats and aesthetics alike, but it turns out it’s also a tragedy for humankind. Forests — along with other plants, soil and oceans — serve as carbon sinks, places where the planet-warming carbon emitted by humans is absorbed and neutralized. In 2018, it was estimated that humans produced about 37 billion tons of carbon dioxide from burning fossil fuels, an all-time high … and an increase of about 60 percent since 1990. Historically, about half of those emissions stayed in the atmosphere while the other half was absorbed into forests and oceans. And it turns out that despite humanity’s skyrocketing emissions the Northern Hemisphere's natural carbon sinks have kept pace with humanity's rising emissions by absorbing increasing amounts of carbon dioxide. |