Action to Avoid Catastrophic Climate Change May Already Be Too Late

Huffington Post.

In the absence of aggressive government policies aimed at curbing greenhouse gas emissions, dangerous temperature elevations are not just a possibility, but a near certainty. Details here.
PLT. The chart, left, shows the disturbing, upward climb of the main greenhouse gas over the past few years. Anything over 350 ppb is dangerous! Fight climate change! Cut down on fossil fuels! Now!