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

 

Geoengineering Not the Solution to Climate Change

RATE THIS! +9
Posted in Science on 16th Feb, 2015 04:43 PM by AlexMuller

Geoengineering, or the attempts to cause a large-scale manipulation of the Earth's climate, is not the solution to climate change, according to new research. Unfortunately, there is no quick fix to the global climate problem, and curbing our carbon dioxide emissions is really our best bet to combat its effects.

 
Researchers with the US National Academy of Sciences say in their new two-volume report that while in theory geoengineering may seem like a good idea, it's actually both "irrational and irresponsible."
 
"Climate intervention is no substitute for reductions in carbon dioxide emissions and adaptation efforts aimed at reducing the negative consequences of climate change," the researchers wrote. "However, as our planet enters a period of changing climate never before experienced in recorded human history, interest is growing in the potential for deliberate intervention in the climate system to counter climate change."
 
Two popular examples of geoengineering that are gaining attention are carbon dioxide removal (CDR) and albedo modification, which involves making Earth more reflective to the Sun's rays so warming is diminished. For example, scientists might send mirrors into space or put sulfur dioxide in the stratosphere.
 
CDR seems pretty self-explanatory, tackling the root of the problem - that is, removing large concentrations of greenhouse gas in the atmosphere and locking it away underground or in the oceans. And while CDR has the advantage of being a less risky option, it's also very costly and a long way off from making the kind of impact we need.
 
On the other hand, albedo-modification techniques could be applied now and at less cost, however, its effects would only be only temporary and have serious unknown consequences. What's more, other impacts of carbon emissions like ocean acidification would continue anyway, and if the technique were ever discontinued, rapidly rising temperatures could cause cataclysmic events.
 
"That scientists are even considering technological interventions should be a wake-up call that we need to do more now to reduce emissions, which is the most effective, least risky way to combat climate change," committee chair Marcia McNutt, said in a news release. "But the longer we wait, the more likely it will become that we will need to deploy some forms of carbon dioxide removal to avoid the worst impacts of climate change."

Tags: climate changegeoengineeringcarbon dioxideglobal warming

Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Medicine on 2017-08-18 18:35:43
    Those at greater risk of having schizophrenia are more.....read more
    Posted in Science on 2017-08-18 18:46:40
    New energy to play a dominant role in China by 2030..read more
    Posted in Science on 2017-08-18 18:41:00
    Astrophysicists predict Earth-like planet 16 light years.....read more
    Posted in Medicine on 2017-08-18 18:30:00
    Alzheimer's may be detected early, via eye exam..read more
    Posted in Medicine on 2017-08-17 17:34:13
    Liquid Biopsy Passes Test for Early Cancer Predicts 59%.....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