Is there any real chance of averting the climate crisis?

james hansen arrested for protesting keystone xlJames Hansen, director of NASA's Goddard Institute for Space Studies, likewise argues that our leaders must  be shaken out of their complacency.  He believes that the problem of global warming is solvable, but only if all nations phase out coal emissions and prohibit emissions from unconventional fuels like tar sands and shale oil.  Read James's Hansen's article in the Guardian, Is there any real chance of averting the climate crisis?

President Obama must decide whether or not to grant a “presidential permit” for Canadian company TransCanada to begin construction of the Keystone XL, a 1,700-mile pipeline from the Alberta tar sands to refineries on the Gulf of Mexico.  Hansen has stated that exploitation of tar sands would make it implausible to stabilize climate and avoid disastrous global climate impacts.  He stated that it would be essentially game over.  The photo above shows Hansen's recent arrest for protesting against the Keystone XL pipeline at the White House.