Three square metres of Arctic summer sea ice disappears for every tonne of carbon dioxide a person emits, wherever they are on the planet, according to new UCL research. (more…)
Tag Archives: sea ice
National Science Foundation video features University of Utah mathematician Ken Golden
From the National Science Foundation
Oceanographers, marine biologists and geologists are the scientists most commonly associated with studying changes in sea ice. But these days, it just might be a mathematician drilling ice cores in the Antarctic. (more…)
Polar bears and Inuit communities have become victims in the public war of words on climate change and wildlife conservation, according to researchers from Britain and Canada.
University of Exeter geographer Dr Martina Tyrrell and Dr Doug Clark from the University of Saskatchewan’s School of Environment and Sustainability examined the fallout from a media campaign in the run-up to the March 2013 proposal to severely limit or prohibit trade in polar bears under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). (more…)
Much attention is paid to melting sea ice in the Arctic. But less clear is the situation on the other side of the planet. Despite warmer air and oceans, there’s more sea ice in Antarctica now than in the 1970s – a fact often pounced on by global warming skeptics. The latest numbers suggest the Antarctic sea ice may be heading toward a record high this year.
While changes in weather may play a big role in short-term changes in sea ice seen in the past couple of months, changes in winds have apparently led to the more general upward sea ice trend during the past few decades, according to University of Washington research. A new modeling study to be published in the Journal of Climate shows that stronger polar winds lead to an increase in Antarctic sea ice, even in a warming climate. (more…)
Santa’s workshop at the North Pole is not under water, despite recent reports. A dramatic image captured by a University of Washington monitoring buoy reportedly shows a lake at the North Pole. But Santa doesn’t yet need to buy a snorkel.
“Every summer when the sun melts the surface the water has to go someplace, so it accumulates in these ponds,” said Jamie Morison, a polar scientist at the UW Applied Physics Laboratory and principal investigator since 2000 of the North Pole Environmental Observatory. “This doesn’t look particularly extreme.” (more…)
Shipping lanes through the Arctic Ocean won’t put the Suez and Panama canals out of business anytime soon, but global warming will make these frigid routes much more accessible than ever imagined by melting an unprecedented amount of sea ice during the late summer, new UCLA research shows.
“The development is both exciting from an economic development point of view and worrisome in terms of safety, both for the Arctic environment and for the ships themselves,” said lead researcher Laurence C. Smith, a professor of geography at UCLA. (more…)
Arctic sea ice volume has declined by 36 per cent in the autumn and 9 per cent in the winter between 2003 and 2012, a UK-led team of scientists has discovered.
Researchers from the Centre for Polar Observation and Modelling at UCL used new data from the European Space Agency’s CryoSat-2 satellite spanning 2010 to 2012, and data from NASA’s ICESat satellite from 2003 to 2008 to estimate the volume of sea ice in the Arctic. (more…)
According to a new technical report, the effects of climate change will continue to threaten the health and vitality of U.S. coastal communities’ social, economic and natural systems.
The report, Coastal Impacts, Adaptation, and Vulnerabilities: a technical input to the 2013 National Climate Assessment, authored by leading scientists and experts, emphasizes the need for increased coordination and planning to ensure U.S. coastal communities are resilient against the effects of climate change. (more…)