Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

Antarctica was once home to rain forests

RATE THIS! +3
Posted in Science on 2nd Aug, 2012 06:52 PM by AlexMuller

Drilling of the seabed off Antarctica has revealed that rain forest grew on the frozen continent 52 million years ago, scientists said Thursday, warning it could be ice-free again within decades.

 

The study of sediment cores drilled from the ocean floor off Antarctica's east coast revealed fossil pollens that had come from a "near-tropical" forest covering the continent in the Eocene period, 34-56 million years ago.

 

Kevin Welsh, an Australian scientist who traveled on the 2010 expedition, said analysis of temperature-sensitive molecules in the cores had showed it was "very warm" 52 million years ago, measuring about 68 degrees F.

 

"There were forests existing on the land, there wouldn't have been any ice, it would have been very warm," Welsh told AFP of the study, published in the journal Nature.

 

"It's quite surprising, because obviously our image of Antarctica is that it's very cold and full of ice."

 

Welsh said higher levels of carbon dioxide in the atmosphere were thought to be the major driver of the heat and ice-free conditions on Antarctica, with CO2 estimates of anywhere between 990 to "a couple of thousand" parts per million.

 

CO2 is presently estimated at about 395ppm, and Welsh said the most extreme predictions by the Intergovernmental Panel on Climate Change would see ice again receding on Antarctica "by the end of the century."
 

 

"It's difficult to say, because that's really controlled by people's and governments' actions," said Welsh, a paleoclimatologist from the University of Queensland. "It really depends on how emissions go in the future."
 



Read original article » Back to category

Comments

Author: Guest
Posted: 2013-09-08
+0
XQ40ou Thanks for sharing, this is a fantastic article post.Thanks Again. Will read on... Reply
Author: Guest
Posted: 2013-09-12
+0
Aqab58 Looking forward to reading more. Great article.Thanks Again. Awesome. Reply
Author: Guest
Posted: 2013-10-15
+0
FZclnX Im thankful for the blog post. Keep writing. Reply


 

Recent headlines

  • Posted in Business on 2017-09-22 18:42:50
    To Achieve 100% Renewable Energy, We Need Way Better.....read more
    Posted in Medicine on 2017-09-22 18:31:20
    How the poliovirus can be used to battle lethal cancers..read more
    Posted in Business on 2017-09-21 08:16:42
    Google signs $1.1bn HTC smartphone deal..read more
    Posted in Business on 2017-09-21 08:11:40
    US solar plant costs fall another 30 per cent in just one.....read more
    Posted in Science on 2017-09-21 08:04:25
    SpaceX will call global internet satellite network Starlink..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me