Polar explorers of the 30th Antarctic expedition managed to see a beautiful and rare phenomenon - mother-of-pearl clouds.

By Shreya Dasgupta In Antarctica, penguin poop, or guano, can cover the ground for miles, especially around penguin colonies with thousands of individuals. In fact, large, brown guano stains on ...

Nacreous clouds appear over McMurdo Station in Antarctica. (Photo courtesy: Jeff Fogg) Issaquah's Jeff Fogg has been working down at the McMurdo Station in Antarctica for nearly a year and a half ...

There are about 20 million penguins living in Antarctica, according to the British Antarctic Survey. This teeming population produces a lot of poop, and therefore a lot of clouds.

These particles grow into clouds, which may have a cooling effect on the Earth’s surface. The study focused on a colony of 60,000 Adelie penguins on the Antarctic Peninsula.

Researchers conducted cloud observations in the Southern Ocean over the course of four months to better understand the frequency and climate effects of supercooled liquid water clouds.

That’s especially true in remote Antarctica, far from human sources of pollution, which can otherwise serve as aerosols. Clouds are insulating and have a cooling effect on surface temperatures ...