News tagged with northern hemisphere

Saturn's north polar hexagon

(Phys.org)—Saturn's north polar hexagon basks in the Sun's light now that spring has come to the northern hemisphere. Many smaller storms dot the north polar region and Saturn's signature rings, which appear ...

Feb 26, 2013
5 / 5 (6) 7

Caves point to thawing of Siberia

Evidence from Siberian caves suggests that a global temperature rise of 1.5 degrees Celsius could see permanently frozen ground thaw over a large area of Siberia, threatening release of carbon from soils, ...

Feb 21, 2013
3.6 / 5 (10) 8 | with audio podcast

Is the ozone layer on the road to recovery?

(Phys.org)—Satellites show that the recent ozone hole over Antarctica was the smallest seen in the past decade. Long-term observations also reveal that Earth's ozone has been strengthening following international ...

Feb 10, 2013
4.4 / 5 (14) 8 | with audio podcast

Cormorants cannot capture the benefits of global warming

(Phys.org)—Even though cormorants seem ideally placed to benefit from global warming, by expanding their breeding range into the far north, the darkness of the polar night is likely to keep them firmly in their place, according ...

Feb 05, 2013
5 / 5 (3) 5

Cassini watches storm choke on its own tail

(Phys.org)—Call it a Saturnian version of the Ouroboros, the mythical serpent that bites its own tail. In a new paper that provides the most detail yet about the life and death of a monstrous thunder-and-lightning ...

Jan 31, 2013
5 / 5 (2) 3 | with audio podcast