“We would be sending our climate back to a state we haven’t adjusted to as a species.”
The Conversation blog reports,
Last December’s meeting of the American Geophysical Union featured three of the world’s leading climate scientists: James Hansen (NASA’s chief climate scientist), Elco Rohling (National Oceanography Centre, Southampton) and Ken Caldeira (Stanford School of Earth Science). But it was Hansen who attracted the most attention when he stated:
“If you doubled CO₂, which practically all governments assume we’re going to do, that would eventually get us to the ice-free state” and “We would be sending our climate back to a state we haven’t adjusted to as a species”…
As atmospheric CO₂ is reaching a level unknown for the last three million years, the disconnection between science and the human response is growing. Despite warnings over the last 30 years, we are still developing global infrastructures to extract every economically accessible ton of coal, barrel of conventional or shale/sand oil and cubic meter of natural gas and coal-seam gas.
Contrarian claims by sceptics, misrepresenting direct observations in nature and ignoring the laws of physics, have been adopted by neo-conservative political parties. A corporate media maintains a “balance” between facts and fiction. The best that governments seem able to do is devise cosmetic solutions, or promise further discussions, while time is running out.
Good planets are hard to come by.