The ammonia from Adélie penguin guano reacts with sulfur-containing gases in the atmosphere to aid in forming clouds, which ...

When a volcano erupts, it can spew ash high into the atmosphere—inserting aerosols right where clouds typically form. How ...

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere ...

Previous models have found clouds fueled by seabird guano in the Arctic do cool the ground, but the study authors say ...

When the wind blew from the direction of the colony, ammonia levels spiked, sometimes reaching 1,000 times above normal ...

Volcanic ash from eruptions can reshape cirrus clouds, forming giant ice crystals and altering how Earth traps heat in the ...

Penguin poop provides ammonia for cloud formation in coastal Antarctica, potentially helping to mitigate the impacts of climate change in the region.

Memorial Day Monday features a sunny start in Chicago with a gradual increase of cloud cover by the afternoon. Highs will top out in the lower 60s for the immediate lakeshore and inland ...

Scattered showers moves in mainly after midnight/early Wednesday Scattered showers, a few non severe storms, Wednesday Isolated rain chance Thursday, better chance Friday afternoon PLANNING THE ...

An area of low pressure is pushing across Southern California, bringing marine layer clouds. Although the mornings will be cloudy, the skies should clear up in the afternoon. After a week of mild ...

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