Meteorite crater reveals future of a globally warmed world

There are 1 comment on the The Raw Story story from May 9, 2013, titled Meteorite crater reveals future of a globally warmed world. In it, The Raw Story reports that:

Lake sediments recorded the climate of the Arctic during the last period when CO2 levels were as high as today The future of a globally warmed world has been revealed in a remote meteorite crater in Siberia, where lake sediments recorded the strikingly balmy climate of the Arctic during the last period when greenhouse gas levels were as high as ... (more)

Join the discussion below, or Read more at The Raw Story.

LessHypeMoreFact

Toronto, Canada

#1 May 10, 2013
" But the record from Lake El’gygytgyn of a very warm Arctic when atmospheric CO2 levels were last at about 400 parts per million (ppm) indicates the opposite, according to Brigham-Grette.“My feeling is we have underestimated the sensitivity, unless there are some feedbacks we don’t yet understand or we don’t get right in the models.”

Actually it is a lot simpler than defects in the model. The model is designed for a short distance view of the future. In other words, it reacts to the relatively 'prompt' warming response. But some factors can take a lot longer to reach full effect. This is why the forecast for a doubling of CO2 is about 3C within the century and up to 6C over a millennium or more. The arctic will warm a bit more than the planetary average.

Tell me when this thread is updated:

Subscribe Now Add to my Tracker

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Global Warming Discussions

Title Updated Last By Comments
What role do you think humans play in global wa... (Sep '14) 42 min litesong 5,582
News Once slow-moving threat, global warming speeds ... (Dec '08) 1 hr IBdaMann 53,520
News Updated NASA Data: Global Warming Not Causing A... 4 hr IBdaMann 10
Poll Will it, won't it? Part 3 (Aug '12) 9 hr litesong 2,120
Seeking a objective petspective on CO2's abilit... 16 hr Earthling-1 20
Global Cooling 17 hr Earthling-1 77
News Wynne says Canada's 'future prosperity' depends... 22 hr Chuffed 2
More from around the web