The Trump administration's nominee to lead NASA wants the agency to study climate change on Mars, even as he questions if it's happening here on Earth.

Climate skeptics may soon join a key science advisory panel at U.S. EPA. A number of people who reject the findings of mainstream climate science are being considered by the Trump administration for spots on EPA's Science Advisory Board. At least one of them hopes to use a position on the board to challenge the science undergirding many environmental regulations.

One of the enduring mysteries of climate change is how it transforms the deep ocean and the circulation of water across the globe.

Hurricane Irma is a Category 5 storm and a "dangerous major hurricane," according to the National Weather Service. Longtime observers have been shocked by its power and have warned that it could be one of the most infamous storms in Atlantic hurricane history. "Irma has me sick to my stomach," Eric Blake, a scientist at the National Hurricane Center, wrote in a Twitter message. "This hurricane is as serious as any I have seen. No hype, just the hard facts. Take every life saving precaution you can."

There is something unusual about the Trump administration's appointment of NOAA's new deputy administrator: He believes climate change is real.