From the News desk at the BBC – A review from the UK Met Office says it is becoming clearer that human activities are causing climate change.
It says the evidence is stronger now than when the Intergovernmental Panel on Climate Change carried out its last assessment in 2007.
The analysis, published in the Wiley Interdisciplinary Reviews [...]

Here Peter Sinclaire puts a case for ‘Climate Denial – Crock of the Week’
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Article and images courtesy of Reuters – Like many low-altitude glaciers, it’s steadily melting, shrinking two miles over the past 200 years as it tries to strike a new balance with rising temperatures.
At the Kenai Fjords National Park south of Anchorage, managers have learned to follow the Exit and other glaciers, moving signs and paths [...]

Reported in Science this tipping point on the destabilization of methane clathrates was detailed as a possible consequence on Arctic warming in ZERO Greenhouse Emissions. The book by Bob Williamson of the Greenhouse Neutral Foundation suggests this as one of multiple interlinked outcomes. It is required reading to determine how action must now be focused, [...]

Arctic ice melting could cost global agriculture, real estate and insurance anywhere from $US2.4 trillion to $US24 trillion by 2050 in damage from rising sea levels, floods and heat waves, according to a new report.
“Everybody around the world is going to bear these costs,” said Eban Goodstein, a resource economist at Bard College in New [...]

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(PhysOrg.com) — A new University of California, Davis, study by a top ecological forecaster says it is harder than experts thought to predict when sudden shifts in Earth’s natural systems will occur — a worrisome finding for scientists trying to identify the tipping points that could push climate change into an irreparable global disaster.
“Many scientists [...]

Climate change is transforming the Arctic environment faster than expected and accelerating the disappearance of sea ice, scientists said on Friday in giving their early findings from the biggest-ever study of Canada’s changing north.
The research project involved more than 370 scientists from 27 countries who collectively spent 15 months, starting in June 2007, aboard a [...]

Recent observations show that Beaufort Sea ice was not as it appeared in the summer of 2009. Sea ice cover serves as an indication of climate and has implications for marine and terrestrial ecosystems.
In early September 2009, satellite measurements implied that most of the ice in the Beaufort Sea either was thick ice that had [...]

There is increased evidence that the Arctic could face seasonally ice-free conditions and much warmer temperatures in the future.
Scientists documented evidence that the Arctic Ocean and Nordic Seas were too warm to support summer sea ice during the mid-Pliocene warm period (3.3 to 3 million years ago). This period is characterized by warm temperatures similar [...]