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Tag: ice
Expanding Antarctic sea ice linked to natural variability
2016-07-04 10:11:00| Climate Ark Climate Change & Global Warming Newsfeed
Phys.Org: The recent trend of increasing Antarctic sea ice extent-seemingly at odds with climate model projections-can largely be explained by a natural climate fluctuation, according to a new study led by the National Center for Atmospheric Research (NCAR). The study offers evidence that the negative phase of the Interdecadal Pacific Oscillation (IPO), which is characterized by cooler-than-average sea surface temperatures in the tropical eastern...
Understanding ice loss in Earths coldest regions
2016-07-04 02:32:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: How do ice sheets melt in places where surface conditions are too cold for melting? Glaciers in the McMurdo Dry Valley rarely are observed to be actively melting, yet runoff from these glaciers feeds streams, lakes, and associated ecosystems in the valleys, which are among the coldest and driest ecosystems on Earth. The processes generating melt under these marginal conditions are not well understood, and traditional melt modeling techniques are inadequate to explain the observed runoff. Using ice...
Tags: loss
understanding
regions
ice
'Perfect Storm' of Humans and Climate Change Doomed Ice Age Giants
2016-07-02 03:12:00| Climate Ark Climate Change & Global Warming Newsfeed
LiveScience: The saber-toothed cat, large ground sloth and other ice age giants of South America didn't go extinct solely because of climate change or prehistoric human activity, but because of a perfect storm of the two that hit the giant beasts at the same time, a new study finds. For years, researchers have debated what felled many of the megafauna animals that weigh more than 100 lbs. (45 kilograms) shortly after the end of the last ice age. Some scientists blamed humans, who had newly colonized the...
Wind-blown Antarctic sea ice helps drive ocean circulation
2016-06-27 10:14:00| Climate Ark Climate Change & Global Warming Newsfeed
PhysOrg: A team of scientists used a computer model to synthesize millions of ocean and ice observations collected over six years near Antarctica, and estimated, for the first time, the influence of sea ice, glacier ice, precipitation and heating on ocean overturning circulation. Overturning circulation brings deep water and nutrients up to the surface, carries surface water down, and distributes heat and helps store carbon dioxide as it flows through the world's oceans, making it an important force in the...
Arctic's pink snow pushing ice glaciers towards faster melting: Research
2016-06-26 21:46:00| Climate Ark Climate Change & Global Warming Newsfeed
INewsToday: Arctic's pink snow pushing ice glaciers towards faster melting: Research But this month, the Arctic landscape looks like something out of a Dr. Seuss book, with landscapes of pink snow. This was speculated to be a result of meteoric iron deposits, according to a report from the London Times that accompanied Ross' findings. The snow changing a darker color could hasten the melting process, which could result in more algae growth and further accelerate the process. Watermelon snow has been spotted...
Tags: research
ice
pink
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