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

Any company designed for success in the 20th century is doomed to failure in the 21st.

 

David S. Rose

Climate tech fixes urged for Arctic methane

RATE THIS! +1
Posted in Science on 17th Mar, 2012 11:38 PM by AlexMuller

Scientists told UK MPs this week that the possibility of a major methane release triggered by melting Arctic ice constitutes a "planetary emergency".

 

The Arctic could be sea-ice free each September within a few years.

 

Wave energy pioneer Stephen Salter has shown that pumping seawater sprays into the atmosphere could cool the planet.

 

The Edinburgh University academic has previously suggested whitening clouds using specially-built ships.

 

At a meeting in Westminster organised by the Arctic Methane Emergency Group (Ameg), Prof Salter told MPs that the situation in the Arctic was so serious that ships might take too long.

 

"I don't think there's time to do ships for the Arctic now," he said.

 

"We'd need a bit of land, in clean air and the right distance north... where you can cool water flowing into the Arctic."

 

Favoured locations would be the Faroes and islands in the Bering Strait, he said.

 

Towers would be constructed, simplified versions of what has been planned for ships.

 

In summer, seawater would be pumped up to the top using some kind of renewable energy, and out through the nozzles that are now being developed at Edinburgh University, which achieve incredibly fine droplet size.

 

In an idea first proposed by US physicist John Latham, the fine droplets of seawater provide nuclei around which water vapour can condense.

 

This makes the average droplet size in the clouds smaller, meaning they appear whiter and reflect more of the Sun's incoming energy back into space, cooling the Earth.

 

On melting ice

 

The area of Arctic Ocean covered by ice each summer has declined significantly over the last few decades as air and sea temperatures have risen.

 

For each of the last four years, the September minimum has seen about two-thirds of the average cover for the years 1979-2000, which is used a baseline. The extent covered at other times of the year has also been shrinking.

 

What more concerns some scientists is the falling volume of ice.

 

Analysis from the University of Washington, in Seattle, using ice thickness data from submarines and satellites, suggests that Septembers could be ice-free within just a few years.

 



Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Science on 2016-08-25 16:37:37
    Most nations lack ability to deal with invasive species..read more
    Posted in Games on 2016-08-25 16:26:29
    Why Pokemon Go may have passed its peak..read more
    Posted in Science on 2016-08-25 16:21:07
    Google's Antiaging company Calico will use Computational.....read more
    Posted in Business on 2016-08-25 16:11:18
    Viewers engage with ads in VR much more than in mobile or.....read more
    Posted in Interviews on 2016-08-24 16:39:22
    PTN interviews João Pedro de Magalhães on his insights.....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
Delivering drugs via nanoparticles to target mitochondria..read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more

Recent Blog Posts

  • Posted by AlexMuller
    NASA prepares to launch first U.S. Asteroid sample return mission..read more
    Posted by AlexMuller
    Stopping scars before they form..read more
    Posted by AlexMuller
    Hope for reversing stroke-induced long-term disability..read more
    Posted by AlexMuller
    Ancient air pockets changing the history of Earth’s oxygen..read more
    Posted by AlexMuller
    Chimpanzees choose cooperation over competition..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