California butterfly populations declining rapidly; ‘There is nowhere to go except heaven’

(University of California – Davis) California butterflies are reeling from a one-two punch of climate change and land development, says an unprecedented analysis led by UC Davis butterfly expert Arthur Shapiro.The new analysis, scheduled to publish online this week in the journal Proceedings of the National Academy of Sciences, gives insights on how a major […]

Image of the Day: Bear Glacier Melt Viewed from Space

By Claire BatesLast updated at 8:02 AM on 23rd September 2009 These awe-inspiring images of glaciers are helping scientists to determine just how quickly our planet is heating up. The huge ice fields are thought to be one of the most reliable indicators of climate change and are best studied from space. The features form […]

Australia oyster farming collapses

By DEBRA JOPSONJanuary 12, 2010 They are the farmers who play god to the oysters which feed Sydney. In Tuross Lake there are no longer natural tides since the big dry closed the nearby river entrance to the sea last year, so Graeme Campbell and his son Daniel replicate the flow which keeps their stock […]

Graph of the Day: Australia Mean Temperature Deciles, 1950-Present

2009 ends Australia’s warmest decade on record, with a decadal mean temperature anomaly of +0.48°C (above the 1961-90 average). In Australia, each decade since the 1940s has been warmer than the preceding decade. In contrast, decadal temperature variations during the first few decades of Australia’s climate record do not display any specific trend. This suggests […]

Debris from melting glaciers chokes Mount Rainier rivers

The fallout from Mount Rainier’s shrinking glaciers is beginning to roll downhill, and nowhere is the impact more striking than on the volcano’s west side. By Sandi Doughton, Seattle Times science reporter National Park Service geologist Paul Kennard walks over a portion of Tahoma Creek where glacial sediment has spilled into forest. Mount Rainier’s glaciers […]

‘The Green Drought’: Floodwaters fail to stop drought's creep across New South Wales

By SAFFRON HOWDEN AND JESSICA MAHARJanuary 12, 2010 Roads remain submerged in floodwater, ghostly rivers have risen from the dead, paddocks are a sea of green, and mosquitoes are breeding like it’s the tropics. Welcome to the drought, NSW style. Despite a surge of devastating floodwaters through parts of the west and central west since […]

Pine beetles transform B.C. forests into net carbon emitters

Last year, B.C.’s forests were praised in the climate-change fight. But the pine beetle has forced the province to rethink its forest policy By Justine Hunter Victoria — From Saturday’s Globe and Mail Published on Friday, Jan. 08, 2010 7:54PM EST Last updated on Saturday, Jan. 09, 2010 4:31PM EST In a single season, an […]

Graph of the Day: Trend in Ocean Surface Temperature, 1959-2008

Long-term 50-year change in sea surface temperature (SST) during 1959-2008 calculated by fitting a linear trend to 50 years of monthly SST data at each grid point. The SST fields are from the Hadley Centre data set as described by Rayner et al. (2006). The Copenhagen Diagnosis, 2009: Updating the world on the Latest Climate […]

Polar bears in southern Beaufort Sea spending more time on land and open water

  ANCHORAGE, ALASKA, January 2010 — A long-term study showing the changes in habitat associations of polar bears in response to sea ice conditions in the southern Beaufort Sea has implications for polar bear management in Alaska. Karyn Rode, a polar bear biologist with the U.S. Fish and Wildlife Service in Anchorage, Alaska and one […]

Warmer climate could stifle carbon uptake by trees

  (University of Colorado at Boulder) Contrary to conventional belief, as the climate warms and growing seasons lengthen subalpine forests are likely to soak up less carbon dioxide, according to a new University of Colorado at Boulder study. As a result, more of the greenhouse gas will be left to concentrate in the atmosphere. “Our […]

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