By Stephen Leahy
UXBRIDGE, Canada, Jun 1, 2012 (IPS)
The planet’s climate recently reached a new milestone of 400 parts per million (ppm) of carbon dioxide in the Arctic.
The last time Earth saw similar levels of climate-heating carbon dioxide (CO2) was three million years ago during the Pliocene era, where Arctic temperatures were 10 to 14 degrees C higher and global temperatures four degrees C hotter.
Research stations in Alaska, Greenland, Norway, Iceland and even Mongolia all broke the 400 ppm barrier for the first time this spring, scientists reported in a release Thursday. A global average of 400 ppm up from the present 392 ppm is still some years off.
If today’s CO2 levels don’t decline – or worse, increase – the planet will inevitably reach those warmer temperatures, but it won’t take a thousand years. Without major cuts in fossil fuel emissions, a child born today could live in a plus-four-degree C superheated world by their late middle age, IPS previously reported. Such temperatures will make much of the planet unliveable.
In a four-degree warmer world, climate adaptation means “put your feet up and die” for many people in the world, said Chris West of the University of Oxford’s UK Climate Impacts Programme in 2009.
This week the International Energy Agency reported that the nations of the world’s CO2 emissions increased 3.2 percent in 2011 compared to 2010. This is precisely the wrong direction: emissions need to decline three percent per year to have any hope of a stable climate.
By 2050, in a world with more people, carbon emissions must be half of today’s levels.
Impossible? No. A number of different energy analyses show how it can be done. Continue reading