Sweltering heat waves that typically strike once every 20 years could become yearly events across 60 percent of Earth's land surface by 2075.

The planet is effectively three-quarters of the way to the limit set by world leaders of 2 degrees Celsius of warming.

COSMIC satellites have provided a reliable thermometer in the sky.

The ORCAS field campaign will help scientists better understand just how much carbon dioxide the icy waters are able to lock away.

NCAR scientists present evidence in a new study that they can predict whether the Arctic sea ice that forms in the winter will grow, shrink, or hold its own over the next several years.