James Hansen

4 Reasons the Paris Agreement Won’t Solve Climate Change (Video)

Many hail the Paris agreement—set to cross the threshold this week to come into effect—as a panacea for global climate change. Yet tragically, this perspective neglects to take into account the scientific reality of our climate system, which tells a much different story.

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Say Goodbye to Coastlines: New Study Warns of Disastrous Sea Level Rise Within Decades

In 2005, I argued that ice sheets may be more vulnerable than the Intergovernmental Panel on Climate Change (IPCC) estimated, mainly because of effects of a warming ocean in speeding ice melt. In 2007, I wrote "Scientific Reticence and Sea Level Rise," describing and documenting a phenomenon that pressures scientists to minimize the danger of imminent sea level rise.

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James Hansen: How We Can Stop Big Oil in its Tracks and Keep Dirty Energy in the Ground

NEW YORK – I could not help thinking of David versus Goliath earlier this week as I was working on a letter to Jose Manuel Barroso, President of the European Commission. 

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Why the Tar Sands Pipeline Will Be Game Over for Our Planet

Tar Sands Action organized a civil disobedience sit–in at The White House to oppose construction of the Keystone XL tar sands pipeline that began on August 20 and will culminate in a big rally on September 3rd. On August 29 I joined 60 religious leaders and other fellow protestors. I was arrested that day. But before I was handcuffed, I addressed fellow activists who had gathered outside The White House with these words:

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