The Best Way to Find Out if We Can Cool the Planet
A few years ago, the idea of deliberately blocking the sun to combat climate change was taboo for scientists. But a lot can change in a short time.
As the disastrous effects of climate change mount, Congress has asked federal scientists for a research plan, private money is flowing and rogue start-ups are attempting experiments — all signs that momentum around solar geoengineering is building fast. The most discussed approach involves spraying tiny particles into the stratosphere to reflect sunlight and cool the planet. Other proposals include injecting sea salt into clouds to increase their reflectivity or using giant space parasols to block the sun.… Seguir leyendo »