CESM2 will allow exploration of an impressive breadth of scientific questions.

A new analysis compares 22 recent hurricanes with their likely future selves at the end of this century.

In the weeks before Hurricane Harvey tore across the Gulf of Mexico and plowed into the Texas coast in August 2017, the Gulf's waters were warmer than any time on record.

The agreement stipulates that warming be limited to between 1.5 degrees C (2.7 degrees Fahrenheit) and 2 degrees C (3.6 degrees F). It also stipulates that countries achieve net-zero greenhouse gas emissions in the second half of this century.

Cutting emissions would reduce the threat of sea level rise to coastal cities worldwide, with especially significant benefits for New York and other U.S. East Coast cities.