Artificial Leaf Might Be Key to Reversing Climate Change - InformationWeek

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Artificial Leaf Might Be Key to Reversing Climate Change
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kstaron
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kstaron,
User Rank: Ninja
3/25/2015 | 5:19:10 PM
glimmer of hope
Hydrogen for fuel, oxygen to breathe and left with carbon ready for making nanotubes and whatnot. Pretty nice bit of work. After reading the latest on Global climate change where the glacial ice measuring kilometers thick is sheeting off into the ocean and is predicted to cause sea level rise in the next hundred years that could swallow a decent chunk of U.S. coastline, this is a glimmer of hope that we can defend ourselves from ourselves.
David Wagner
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David Wagner,
User Rank: Strategist
3/15/2015 | 9:05:12 PM
Re: Where does the carbon go?
@anon- Quoting from the press release. "The development could help lead to safe, efficient artificial photosynthetic systems—also called solar-fuel generators or "artificial leaves"—that replicate the natural process of photosynthesis that plants use to convert sunlight, water, and carbon dioxide into oxygen and fuel in the form of carbohydrates, or sugars."

That is the final goal though they are not there yet.
David Wagner
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David Wagner,
User Rank: Strategist
3/15/2015 | 8:58:07 PM
Re: Where does the carbon go?
@W_albany- The same place it does when a plant does the same thing. It is chemically altered. I don't have room in an article this size to explain the basics of photosythnesis. But if you would like a quick and dirty review of artificial photosynthesis, you can find it here: http://en.wikipedia.org/wiki/Artificial_photosynthesis

Essentially, you're breaking up the carbon into a non-greenhouse gas. you have choices, based on the chemicals you use in the artificial leaf what it breaks down to. Carbon is not dangerous (it is the building block of organic life). It is CO2 specifically that is the problem. And only if you have it over a certain level.
ANON1242219167129
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ANON1242219167129,
User Rank: Apprentice
3/15/2015 | 10:41:38 AM
Re: Where does the carbon go?
This article is based on a Caltech press release (the link is in the article). That press release does not mention carbon at all. It says the device breaks water up into oxygen and hydrogen. As such, it's not clear that this is carbon negative at all.
anon3381682447
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anon3381682447,
User Rank: Apprentice
3/15/2015 | 9:46:59 AM
Re: Fear Mongering Libeals
Wake up;

*Occupywallstreet now does not even mention CO2 in its list of demands because of the bank-funded and corporate run carbon trading stock markets ruled by politicians.

We have such little smog now that "smog levels" no longer even measure smog; they measure conditions that "could" lead to being able to measure any smog. That's why "Alerts", "Advisories", "Watches" and "Be Kind to Air Days" are only predictions that smog "could be" measured within the next 36 hours. And if that happens its called a; "Smog Warning" or real smog. Now for a decade and a half we have had no real detectable or more accurately; "meaningful" smog levels at all.
DanBluePlanet
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DanBluePlanet,
User Rank: Apprentice
3/15/2015 | 4:19:04 AM
The Tipping Point
The real tipping point will come when the oceans can no longer absorb CO2 and will then release it in a vast wave that will kill off most life on earth. You'll be way too dead to complaint then, why didn't anyone warn me?

 
mak63
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mak63,
User Rank: Ninja
3/15/2015 | 4:07:08 AM
Re: Where does the carbon go?
Video Comment
moonwatcher
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moonwatcher,
User Rank: Ninja
3/14/2015 | 10:49:13 AM
Re: Where does the carbon go?
Carbon fibers can be used in many things.  It makes materials very strong when woven and used to make composites. As such its use and generation would perhaps make economic sense.

I don't believe the fear mongering the global wamring crowd put out. The article repeats the mantra of us "reaching a point of no return in 2007" without disclosing that statement is based on self-serving computer models of the climate and not on real world data. 

Indeed, Dr. Phil Jones of the UN's IPCC is on record as saying there has been no scientifically significant global warming in over 18 years and counting. 

However, any developments that could possibly help ween us off foreign oil and energy resources would be a good thing. Ironic that such developments are forthcoming mostly from R&D and the private sector unrelated to the Jimmy Carter created Department of Energy and its waste of taxpayer dollars. 

A nuclear / hydrogen based economy will hopefully be in our futures within 50 years. 
W_Albany
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W_Albany,
User Rank: Strategist
3/14/2015 | 10:44:19 AM
Where does the carbon go?
 

The article states:

"Created at CalTech, this artificial leaf, also known as a solar-fuel generator, takes CO2, sunlight, and water and creates oxygen and hydrogen."

So the inputs are CO2 and H2O, and the outputs are O2 ahd H2. What happens to the carbon?

The article needs to be revised to explain this. It is meaningless without this important point. 

 
David Wagner
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David Wagner,
User Rank: Strategist
3/13/2015 | 10:30:31 PM
Re: Leaf or Solar Cell plus Electrolysis
@Gary_El- You're quite right about the storage issue. And thanks for finding an apolitical way to point it out. I happen to believe climate change has been proven to be manmade, but I think the best thing about your comment is that people who disagree about something like this can still find a common ground. Common ground is what gets us through problems. 
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