Welcome! Log In Create A New Profile Recent Messages

Deep Creek Hot Springs

The Moon is Waxing Gibbous (86% of Full)


Advanced

Re: SC65

All posts are those of the individual authors and the owner of this site does not endorse them. Content should be considered opinion and not fact until verified independently.

April 07, 2008 08:55PM
http://www.theage.com.au/news/world/scientist-turns-up-the-heat-with-new-alert-on-warming/2008/04/07/1207420309396.html

Scientist turns up the heat with new alert on warming

A LEADING climate scientist says the European Union and its international partners must urgently rethink targets for cutting carbon dioxide in the atmosphere because of fears they have grossly underestimated the scale of the problem.

Dr James Hansen, head of the NASA Goddard Institute for Space Studies in New York, calls for a sharp reduction in carbon dioxide limits.

Dr Hansen said the EU target of 550 parts per million of carbon dioxide — the most stringent in the world — should be slashed to 350 ppm.

He said the cut was needed if "humanity wishes to preserve a planet similar to that on which civilisation developed".

A final version of the paper Dr Hansen co-wrote with eight other climate scientists has been posted on the Archive website.

Instead of using theoretical models to estimate the sensitivity of the climate, the team used evidence from Earth's history, which they contend gives a much more accurate picture. They studied cores taken from the bottom of the ocean, which indicate carbon dioxide levels millions of years ago. They show that when the world began to glaciate at the start of the ice age around 35 million years ago, the concentration of carbon dioxide was about 450 ppm.

"If you leave us at 450 ppm for long enough, it will probably melt all the ice — that's a sea rise of 75 metres," Dr Hansen said. "What we have found is that the target we have all been aiming for is a disaster — a guaranteed disaster."....................
SubjectAuthorViewsPosted

SC65

Wizard 1084April 04, 2008 07:09PM

Re: SC65

Wizard 705April 05, 2008 10:20PM

Re: SC65

Wizard 602April 05, 2008 10:52PM

Re: SC65

Wizard 642April 05, 2008 11:40PM

Re: SC65

Wizard 662April 06, 2008 07:47PM

Re: SC65

Wizard 592April 06, 2008 10:26PM

Re: SC65

Wizard 657April 07, 2008 08:48PM

Re: SC65

Wizard 660April 07, 2008 08:55PM

Re: SC65

Wizard 606April 10, 2008 08:11PM

Re: SC65

Wizard 689April 10, 2008 09:00PM

Re: SC65

Wizard 581April 10, 2008 09:19PM

Re: SC65

Wizard 797April 14, 2008 10:08PM

Re: SC65

Wizard 825April 15, 2008 11:53AM

Re: SC65

Wizard 760April 15, 2008 12:30PM

Re: SC65

Wizard 577April 16, 2008 09:12PM

Re: SC65

Wizard 732April 16, 2008 10:55PM

Re: SC65

Wizard 1169April 16, 2008 11:29PM



Sorry, only registered users may post in this forum.

Click here to login