But how can global warming cause both drier and wetter extremes? Here's what experts say. It's all about the water cycle Water constantly moves between the Earth and its atmosphere. But that system — ...

Here’s what experts say. Water constantly moves between the Earth and its atmosphere. But that system — called the hydrological cycle — is speeding up as global temperatures get hotter ...

(AP Photo/Etienne Laurent, File) In this photo provided by the California Department of Water Resources, forecasting chief Sean de Guzman, second from right, and engineers work the measurement phase ...

Here's what experts say. Water constantly moves between the Earth and its atmosphere. But that system — called the hydrological cycle — is speeding up as global temperatures get hotter ...

Here’s what experts say. It’s all about the water cycle Water constantly moves between the Earth and its atmosphere. But that system — called the hydrological cycle — is speeding up as ...

Water constantly moves between the Earth and its atmosphere. But that system — called the hydrological cycle — is speeding up as global temperatures get hotter, primarily due to the burning of ...