The study of the processes that lead to the formation, growth, and precipitation of clouds in the boundary layer of the lower atmosphere. Develops models and analyzes observations to understand the ...

Dry and occasionally breezy conditions are expected throughout the rest of the week. A cooling trend began today near the coast, bringing temperatures closer to normal. Night through morning low ...

This graph plots extinction rates of marine animal families over the last 600 million years. The shaded band indicates the normal range of extinction rates, known as "background extinction.

This geological signature consists of a thin layer of sediment found across the planet in both marine and terrestrial rocks; it is often identified by the sharp, almost dramatic, change in the ...