The Arctic tundra is one of the world

Regions of Arctic tundra around the world are heating up very rapidly, releasing more greenhouse gases than predicted and boosting the process of global warming, a leading expert said on Wednesday.

health Side-effects stay Chemicals called contrast agents used during cardiac angiography can seriously damage kidneys which, in turn, increases chances of heart attacks. Side-effects were earlier thought to be temporary. A team tracked 294 patients exposed to contrast agents for a year. 31 per cent of the patients were found to suffer from long-term negative

The feedback between the terrestrial carbon cycle and climate is one of the largest uncertainties in current projections of future climate, with the long-term sensitivity of carbon in peatlands remaining unclear.

Washington: The United States released more than a thousand intelligence images of Arctic ice to help scientists study the impact of climate change, within hours of a recommendation by the National Academy of Sciences.

New Nasa satellite measurements show that sea ice in the Arctic is more than just shrinking in area, it is dramatically thinning. The volume of older crucial sea ice in the Arctic has shrunk by 57% from the winter of 2004 to 2008. That

Vast amounts of carbon, about twice as much as contained in the atmosphere, are stored in the Arctic, according to a new study. The amount of carbon in the Arctic raises new concerns over the role of the northern regions as future sources of greenhouse gases.

Carbon in permafrost is found largely in northern regions including Canada, Greenland, Mongolia, Russia, Scandinavia and the U.S.

As more and more ice slides into the ocean, sea levels are rising faster and faster

With their focus on greenhouse gases, atmospheric scientists have largely overlooked lowly soot particles. But black carbon is now a hot topic among researchers and politicians. Jeff Tollefson investigates.

This latest report is on Arctic and the Antractic under assault from the impacts of rapidly accelerating climate change, from increased industrialisation; and from the unchecked consumption of our planet's resources.

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