Johnathan Johnsonadded this to Cool,Interesting,Happy.:-)

These scientists made their own clouds, and what they found could require us to rethink how fast the earth is warming

Business Insider - Ali Sundermier

For decades, scientists have thought that the tiny particles that form clouds — and play a big role in keeping the planet cool — were produced as a counterintuitive side effect of pollution. So, while it was understood that we were putting loads of planet-warming gases into the atmosphere and …