Fig. 3. (A and B) Composite of 23 high-resolution proxy climate records from the Arctic. Values are 10-year means standardized relative to the reference period of 980 to 1800. (A) Records subdivided by source of proxy information: trees, ice, and lakes, with the running count of records. (B) Records subdivided by those that extend 2000 […]
Stagnation Glacier, early 1990s. Note the light-colored ‘bathtub ring’ against the darker, lichen-covered rock. Bylot Island Glaciers, 1948-2009 Technorati Tags: Canada,global warming,climate change,glacier,deglaciation,Arctic
If current melting trends continue, the Arctic Ocean is likely to be free of summer sea ice by 2015, according to research presented at a conference organized by the National Space Institute at Technical University of Denmark, the Danish Meteorological Institute and the Greenland Climate Center. The estimates, which are consistent with some models presented […]
‘We all live on the Greenland ice sheet now. Its fate is our fate’ By Patrick Barkham at Sermilik fjord, Greenland It is calving season in the Arctic. A flotilla of icebergs, some as jagged as fairytale castles and others as smooth as dinosaur eggs, calve from the ice sheet that smothers Greenland and sail […]
By Matt Walker, Editor, Earth News Trees around the world are colonising new territories in response to higher temperatures. From the US west coast to northern Siberia and south-east Asia, trees are growing at higher elevations, and at higher latitudes as the climate warms. Of 166 sites studied, trees are advancing at more than half, […]
By Victoria Gill, Science reporter, BBC News Polar bears have shrunk over the last century, according to research. Scientists compared bear skulls from the early 20th Century with those from the latter half of the century. Their study, in the Journal of Zoology, describes changes in size and shape that could be linked an increase […]
By BOB WEBER, The Canadian Press Climate change is already having a dramatic effect on plants in the High Arctic, turning the once rocky tundra a deep shade of green and creating what could be another mechanism speeding up global warming. In a new study to be published in the November issue of the journal […]
KODIAK ISLAND, Alaska, August 24, 2009 (ENS) – Billions of tons of carbon are buried in the frozen Arctic tundra, now heating up because of human-caused climate change. To measure which greenhouse gases are being released and in what quantities, government scientists are flying instrument-laden planes over the tundra from now through November. They say […]
The graphs show Iceland Sea winter surface water changes in pH, and the saturation state of aragonite. The anthropogenic increase of atmospheric carbon dioxide affects the Nordic Seas both at the surface and at depth. In the surface, the pH has decreased from 8.13 to 8.08 between 1985 and 2008, and the aragonite saturation, which […]
Features formed by melting permafrost provide clues to a changing Arctic landscape and climate By Lisa Jarvis There is a profound quietude north of Alaska’s Brooks Range, the string of mountains separating the boreal forest from the Arctic tundra. Traveling along the Dalton Highway, the one road to the Arctic Ocean, one sees little visible […]
