je.st
news
Tag: polar
Forget Polar Bears Warming Will Hit the Tropics First
2013-10-09 19:03:00| Climate Ark Climate Change & Global Warming Newsfeed
LiveScience: Amber-eyed jaguars could soon boot out polar bears as king of adorable, furry species nearing extinction because of global warming. In the next 10 years, the tropics will suffer "unprecedented" climate change effects, long before the Arctic and its polar bears see big shifts, according to an analysis of global warming trends published today (Oct. 9) in the journal Nature. But the study goes far beyond simply highlighting the plight of tropical plants and animals. For the first time, researchers...
Tags: first
hit
forget
warming
Polar opposites: Why climate change affects Arctic & Antarctic differently
2013-10-02 07:00:00| Climate Ark Climate Change & Global Warming Newsfeed
LiveScience: The sea ice around Antarctica reached a record high in August of 7.2 million square miles (18.6 million square kilometers) -- the greatest extent observed since recordkeeping began in 1979. But as Antarctic sea ice grows, the sea ice of the Arctic is shrinking dramatically. The Northern ice cap reached a record low of 1.32 million square miles (3.42 million square km) in September 2012, due to warming air and waters. If the Earth is warming, and both ends of the planet are affected by climate...
Tags: change
climate
affects
climate change
What are the prospects for the polar regions?
2013-09-27 11:17:00| Climate Ark Climate Change & Global Warming Newsfeed
New Scientist: Pretty dire. We now know that the rapid retreat of the Arctic sea ice over the summer months - which reached its lowest point since records began in 2012 - is unprecedented in at least the last 1450 years. The new report forecasts that the Arctic is likely to continue warming faster than the rest of the planet. This means that the sea ice could almost entirely disappear in September by mid-century, and that up to 81 per cent of Arctic permafrost could thaw by then. Meanwhile, glaciologists...
Tags: the
regions
prospects
polar
Climate Woes Continue: Changes In Polar Bear Diet Result In Higher Toxin Exposure
2013-09-20 22:18:00| Climate Ark Climate Change & Global Warming Newsfeed
RedOrbit: Warmer than average Arctic temperatures in recent years have been stirring up all kinds of ecological changes and a new study in the journal Global Change Biology indicates that polar bears could be getting exposed to higher levels of toxins as a result. The study looked at an East Greenlandic population of polar bears, which is expected to enjoy the Arctic sea ice far longer than other regions. However, the loss of ice sheet cover in these waters occurs at a rate of nearly 1 percent per year,...
Tags: result
continue
higher
bear
Climate Change Linked Higher Chemical Load in Polar Bear Diet
2013-09-20 15:04:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World News: Polar bears are changing their diets to adapt to climate change, a new study has found. Researchers also found that a change in the diet has led to increase in toxic chemicals in the bears' bodies. The study was conducted by researchers from the Greenland Institute of Natural Resources, Aarhus University (Denmark) and their colleagues. The team found that the diet of polar bears has changed over the past few decades and their tissue samples are showing high levels of contaminants. Polar bears...
Tags: change
higher
load
chemical
Sites : [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] next »