Troposphere

NASA study untangles smoke, pollution effects on clouds

Smoke and human-caused pollution have different effects on the clouds that produce much of Earth's rainfall, a new study finds.

Can poor air quality mask global warming’s effects?

In the 1900s, the U.S. warmed everywhere except the Southeast, where warming didn't begin till the 1990s. A study finds…

Smoke from wildfires can have lasting climate impact

New research using data from NASA's airborne science campaigns shows how wildfire smoke could impact the atmosphere and climate much…

Expanding tropics are pushing high altitude clouds towards poles

Clouds, which can help cool the Earth's surface, are being pushed toward the poles primarily by heated air from expanding…