A new study shows the Arctic climate system may be more sensitive to greenhouse warming than previously thought, and that current levels of Earth’s atmospheric carbon dioxide may be high enough to bring about significant, irreversible shifts in Arctic ecosystems. Led by the University of
A new study shows the Arctic climate system may be more sensitive to greenhouse warming than previously thought, and that current levels of Earth’s atmospheric carbon dioxide may be high enough to bring about significant, irreversible shifts in Arctic ecosystems. Led by the University of Colorado at Boulder, the international study indicated that while the [...]
A critical minimum for Arctic sea ice can again be expected for late summer 2010, according to researchers. Scientists from the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association (AWI) in Bremerhaven and from KlimaCampus of the University of Hamburg have now published data in this context in the annual issue [...]
Nature Geoscience Subject Category: Biogeochemistry Soil science: Arctic thaw Hermann F. Jungkunst is at the Institute of Geography, Landscape Ecology, University of Gottingen, Goldschmidtstrasse 5, D-37077 Gottingen, Germany. e-mail: firstname.lastname@example.org Abstract The organic matter stored in frozen Arctic soils could release significant quantities of carbon dioxide and methane on thawing. Now, laboratory experiments show that re-wetting of [...]
ANCHORAGE — An ambitious plan to drill for oil off the northwest coast of Alaska has been moving ahead despite the spill in the Gulf of Mexico, but the project is now facing new questions from federal regulators. Led by Shell Oil, the project has not been formally halted and could still begin exploratory drilling [...]
EVERYONE knows how much hotter it feels to wear a black T-shirt, rather than a white one, on a warm day. In the same way, the melting of sea ice in the Arctic, revealing the dark water below, has been shown by Australian scientists to be the main cause of unusually rapid warming at the [...]
Posted: May 6th, 2010 under Climate Change, General, Nature, Tipping Points.
Tags: arctic, catastrophic climate change, Climate Change, glacial melt, global warming, Ice free Arctic, icesheet loss, science, sea level rise
In another display of the sea change that has occurred at the US Environmental Protection Agency under the current administration, a new report was issued yesterday regarding indicators of climate change. The report, entitled “Climate Change Indicators in the United States,” measures 24 separate indica