Spraying sea salt into the atmosphere to increase the reflective cloud cover over oceans is the way some scientists think they might be able to bring down Earth's temperature. At least they'd like to safely test the idea on a small scale. Pixza/Getty Images hide caption

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Pixza/Getty Images

Science

Scientists Who Want To Study Climate Engineering Shun Trump

The controversial study of climate engineering — aka deliberately messing with Earth's temperature — was finally starting to regain a measure of respectability. And then came President Trump.

The U.S. Preventive Services Task Force says there is not enough evidence to determine whether testing people with no symptoms of celiac disease provides any benefit for those patients. Andrew Brookes/Cultura RF/Getty Images hide caption

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Andrew Brookes/Cultura RF/Getty Images

No Need To Get Screened For Celiac Unless You Have Symptoms, Panel Says

Audio will be available later today.

Spraying sea salt into the atmosphere to increase the reflective cloud cover over oceans is the way some scientists think they might be able to bring down Earth's temperature. At least they'd like to safely test the idea on a small scale. Pixza/Getty Images hide caption

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Pixza/Getty Images

Scientists Who Want To Study Climate Engineering Shun Trump

Audio will be available later today.