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Landsat Study Reveals Greening Across North America’s Arctic

Analyzing 29 years worth of satellite images (1984-2012), a NASA Goddard Space Flight Center research team found nearly one-third of land cover has been changing to resemble landscapes in warmer ecosystems.

Approaching a global warming tipping point

EarthTalk: Climate Change Tipping Point: How Close Are We?

EarthTalk® is a weekly environmental column made available to our readers from the editors of E/The Environmental Magazine Dear EarthTalk: What is the best way to measure how close we are to the dreaded “point of no return” with climate change? In other words, when do we think we will have gone too far?  — David Johnston, via EarthTalk.org While we…

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The consequences of climate change will lead to greater conflict, social change and violence.

Climate Change Exacerbates Social Tensions and Leads to Conflict

A wide array of research reveals that climate change plays a salient role in social change, violence and war. This research summary is one of the most comprehensive surveys of the social impacts of climate change ever assembled. Climate change and conflict The relationship between climate change, social tensions and conflict is well laid out by Kate Johnson. She provides…

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Study of the Arctic Pliocene will reveal clues to climate change today and into the future

Study of Pliocene Arctic Yields Insights into Climate Change Today, and for the Future

The mean monthly average concentration of carbon dioxide in the atmosphere as measured at NOAA’s Earth System Research Laboratory at Mauna Loa, Hawaii exceeded 400 parts per million (ppm) for the first time in modern history back in May. The last time atmospheric CO2 reached this level was during the Pliocene Epoch some 3 million to 5 million years ago,…

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A group inspired by Obama's climate speech

Reaction to President Obama’s Historic Georgetown University Speech

Despite what some detractors may say, the speech delivered by President Obama at Georgetown University will reverberate across America and around the world.  June 25th, 2013 will be remembered as the day America committed itself to act domestically and lead globally on climate change. It is not overstating the case to say the President’s speech signals an end to the…

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US Insurance Industry Ill-Prepared to Deal with Climate Change Risk, Impacts

Eleven extreme weather events took place in the US in 2012. Each left at least $1 billion in damages in their wake. Besides the cost in human life, Superstorm Sandy left behind some $50 billion in economic losses, along with insured losses by property & casulty (P&C) insurers in the tens of billions of dollars. US insurance companies are well…

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World Bank to “Turn Down the Heat” — 4º C Temperature Rise Projected

The World Bank will boost support for climate change mitigation, green growth and climate-smart development as a new report concludes we’re on track for a 4º C temp rise.