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Tag: earths
Earths ozone on bumpy road to recovery
2013-12-13 23:01:00| Climate Ark Climate Change & Global Warming Newsfeed
National Geographic: The Antarctic ozone hole reached its maximum single-day area for 2013 on Sept. 16. The ozone hole (purple and blue) is the region over Antarctica with total ozone at or below 220 Dobson units (a common unit for measuring ozone concentration). Last year the hole in the ozone layer above Antarctica was surprisingly small. But don't get used to that, say atmospheric scientists. Rather than signaling a speedy recovery, the shrinkage was likely a sign of variable weather. The ozone hole still has...
Tags: road
recovery
ozone
bumpy
Climate change is moving the North pole and affecting Earth's rotation
2013-12-13 22:55:00| Climate Ark Climate Change & Global Warming Newsfeed
Gizmodo: I thought I knew all the dreadful effects of climate change, but this new discovery has truly surprised me: "Climate change is causing the North Pole's location to drift, owing to subtle changes in Earth's rotation that result from the melting of glaciers and ice sheets." The entire Earth is tilting because this change. One example: The influx of fresh water from shrinking ice sheets also causes the planet to pitch over. Landerer and colleagues estimate that the melting of Greenland's ice is...
Tags: change
north
moving
affecting
Earth's poles are shifting because of climate change
2013-12-13 11:07:00| Climate Ark Climate Change & Global Warming Newsfeed
New Scientist: Climate change is causing the North Pole's location to drift, owing to subtle changes in Earth's rotation that result from the melting of glaciers and ice sheets. The finding suggests that monitoring the position of the pole could become a new tool for tracking global warming. Computer simulations had suggested that the melting of ice sheets and the consequent rise in sea level could affect the distribution of mass on the Earth's surface. This would in turn cause the Earth's axis to shift, an...
Tags: change
climate
shifting
poles
Earths sensitivity to climate change could be 'double' previous estimates, say geologists
2013-12-11 19:59:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: The sensitivity of Earth's climate to CO2 could be double what has been previously estimated, according to a statement issued by the Geological Society of London. In an addendum to 2010's 'Climate change: Evidence from the Geological Record', the statement notes that many climate models typically look at short term, rapid factors when calculating Earth's climate sensitivity -- defined as the mean global temperature increase brought about by a doubling of atmospheric CO2. It is well known that a...
Tags: change
previous
say
double
Earth's climate: 'Abrupt change is already underway.'
2013-12-07 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Daily Maverick: For years now, people have argued over both the reality and nature of climate change on our Earth. Scientists, mostly, have increasingly argued the preponderance of evidence points strongly towards a significant change in global climate in the offing. Meanwhile, politicians, mostly, have argued it isnt happening, and, anyway, if even it is, it is not from the hand of mankind. Now a high-level American scientific body, the National Research Council, has thrown its full public weight behind the fact...
Tags: change
climate
climate change
underway
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