Image: Global cloud fraction map of Earth

Decades of satellite observations and astronaut photographs show that clouds dominate space-based views of Earth. One study based on nearly a decade of satellite data estimated that about 67 percent of Earth's surface is ...

Air bubbles could keep rivers open for shipping

Researchers at EPFL have shown how air bubbles could keep sediments from obstructing bends in river waterways such as the Rhine River, which has to be dredged regularly to stay open for freight ships.

New data reveals how storms are triggered in the Sahel

In the Sahel, the frequency of storms increases when soil moisture varies over a few kilometers. Such contrasts cause air circulation between dry and humid areas, contributing to the development of storms. For the first time, ...

Aquarius to illuminate links between salt, climate

When NASA's salt-seeking Aquarius instrument ascends to the heavens this June, the moon above its launch site at California's Vandenberg Air Force Base won't be in the seventh house, and Jupiter's latest alignment with Mars ...

What causes extreme heat in North China?

Extreme heat over the North China Plain is happening with increasing frequency in recent years, posing a substantial threat to human health and social activities. Thus, the mechanism behind the formation of extreme heat is ...

page 2 from 3