The world is warming. This fact is most often discussed for the Earth's surface, where we live. But the climate is also changing from the top of the atmosphere to the bottom of the ocean. And there is a clear fingerprint of humanity's role in causing these changes through greenhouse gas emissions, primarily from burning fossil fuels.
Over the last several decades, satellites have monitored the Earth and measured how much heat enters and leaves the atmosphere. Over that time, as greenhouse (…)