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Can global warming be reversed ?


Posted on Friday, 12 July, 2013 | Comment icon 75 comments | News tip by: Still Waters


Image credit: sxc.hu


 
Climate researchers have been investigating possible ways to reverse the effects of global warming.

According to a recent study, it should be possible to effectively reverse climate change by building special bio-energy plants that can filter carbon dioxide out of the atmosphere and deposit it within old gas wells. It would be a slow process but it could be done, potentially lowering global temperatures by as much as 0.6 degrees Celsius every hundred years.

"It’s like drilling for natural gas, but in reverse," said study co-author Niclas Mattson. "The first combined full-scale power plants will probably be here within a decade, so it will take several decades for this to become significant on a global scale."

"Hi-tech new bio-energy plants could “reverse” global warming by pumping carbon dioxide into old gas wells - lowering temperatures by 0."

  View: Full article |  Source: Yahoo! News

  Discuss: View comments (75)

   


 
Recent comments on this story
Comment icon #66 Posted by Br Cornelius on 22 July, 2013, 15:49
the problem with batteries so far is that they have been open cycle - that means that there is a constant need for new resources as old resources are lost to landfill. Its relatively simple and very economical to close that loop and only lose a fraction of the resource input. A battery maybe dead at the end of its life - but it has lost none of its essential raw materials and it is always cheaper to recycle these than to mine new resources. Close the battery loop and the whole situation changes. Batteries have come on a long way since the simple lead acid days - but they can still come on a ... [More]
Comment icon #67 Posted by Frank Merton on 22 July, 2013, 16:04
To my general view there are several categories of problems. First there are technological hurdles, and I see so many possible possibilities on the horizon that something will work out -- even if we see a reduction in global living standards for awhile (not a minor thing to the poor who get hit hardest). More important are economic problems; those of entrenched industries using their turf and their patents and so on to prevent the arrival of new technologies. Finally there are political hurdles -- civil unrest and behaviors by states to protest their advantages at the expense of other state... [More]
Comment icon #68 Posted by Doug1o29 on 22 July, 2013, 18:03
Hydrogen is only one component of the mix and for the most-part, doesn't have to compete at all. One could also store surplus wind energy by pumping water uphill into a reservoir and generating power with it when the wind isn't blowing. At any rate, I intend to give this some serious study. Doug
Comment icon #69 Posted by Br Cornelius on 22 July, 2013, 18:16
Pumped storage is a proven technology with huge potential for expansion. Coupled with HVDC grids this allows whole continent renewables networks with storage at optimum nodes. The EU has an active policy to create such a HVDC grid with the aim of greatest renewables diversity. It is also a massive incentive to spread peace across large regions since the infrastructure becomes so interdependent that grid stability relies on political stability. Prosperity through cooperation - natures blueprint. Br Cornelius
Comment icon #70 Posted by Doug1o29 on 23 July, 2013, 13:12
Hydrogen does not require batteries, except starter batteries for the engines that burn the hydrogen. Engines that can remain permanently connected to the grid don't need batteries at all. I am ready to buy an electric vehicle as soon as they come up with one that is affordable, efficient enough to amortize its cost in a reasonable amount of time and has a range of at least 350 miles - a Prius does not fill the bill. But even then, I will need a different vehicle to go visit my mother who lives 1100 miles from here. I suspect that electric vehicles for a trip like that would be very... [More]
Comment icon #71 Posted by Br Cornelius on 23 July, 2013, 14:37
My concern with Hydrogen is that it is so reactive it damages the bonds within the containment medium. It is only an efficient storer of energy when compressed to a liquid because it has a relatively low energy density as a gas and so requires huge volumes of storage (very expensive) to contain. As described in the article I linked to, it is both unavoidable and necessary to vent a certain amount of the hydrogen for it to remain in safe state - which means that cannot be considered as anything other than a short term buffer, and an inefficient one at that. The real issue is that its a massi... [More]
Comment icon #72 Posted by Doug1o29 on 23 July, 2013, 19:16
I'm not sure how much, if any, would be lost to venting hydrogen stored in the way I describe, but I suspect there would be some. Something else to check out. I do not propose storing it as a liquid, but as a gas on the surface of iron-oxide molecules. In this form it has an energy density comparable to gasoline. It would still require a tank, probably iron, and I'm wondering if hydrogen can degrade an iron tank as you describe (What about a lined tank?). Also, greater density can be achieved by giving all atoms the same spin resonance. In this form it is much less volatile and... [More]
Comment icon #73 Posted by Calibeliever on 16 September, 2013, 17:08
Nah, I did it on purpose. Deniers aren't required to site facts, they get to just say "no it isn't". I thought I'd try it for a change. Felt kinda good
Comment icon #74 Posted by Harte on 16 September, 2013, 23:56
No it didn't. Harte
Comment icon #75 Posted by Frank Merton on 17 September, 2013, 2:01
With the internet I think the need to travel to and from office-type work could be eliminated if governments got serious about it and began penalizing companies for dragging their heals on the subject. A lot of travel for sales and meetings could also be more strongly discouraged.
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