Cloud

A climate scientist asks whether nature can save us from ourselves.

The International Space Station captured this photo of the Sarychev Volcano erupting on June 12, 2009. Volcanic plumes contain turbulence that extends to a wide range of size scales. NASA “Ladies and gentlemen, the captain has turned on the seat belt sign. Please return to your seats and ensure your seat belts are fastened.” So […]

Martin Koitmäe via Flickr If you look to the darkening sky after the end of a long summer day, you might see tendril-like clouds with a blueish tinge that hang at the edge of space. They appear when conditions are right, generally at latitudes close to the North or South Poles, and only when the […]