Hidden Structures in Clouds May Solve a Longstanding Mystery About Rainfall

(Andreas Felske/Unsplash) It's well known that where there's smoke there's fire, but did you know that where there's rain there's ice? Or so the conventional thinking goes, as atmospheric ice crystals allow raindrops to grow large and heavy enough to fall from cold clouds. There are also 'warm clouds', which generate much of Earth's rain, especially in the tropics, and influence our global energy…