Group items tagged

ScienceDaily (June 29, 2010) - 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.

'It is now virtually certain a child born in 1979 will not reach 50 years of age before the Arctic is ice-free in the summer. That is a rapid change on a planetary scale, with far-reaching consequences that scientists are just beginning to understand.' Stephen Leahy, Inter Press Service

ScienceDaily (May 30, 2010) - A collaborative research team led by Queen's University biologists has found that potent metals like mercury and lead, ingested by Arctic seabirds feeding in the ocean, end up in the sediment of polar ponds.