Earth’s Upper Atmosphere Is Cooling Fast and Scientists Finally Know Why

Earth’s surface and lower atmosphere are getting hotter, but far above the planet, another dramatic change has been unfolding in the opposite direction. The upper atmosphere has been steadily cooling for decades, creating one of the most recognizable signs of human-driven climate change. Scientists have understood that this was happening, but the detailed physics behind [...]

from SciTechDaily https://ift.tt/ERi1kpN