700 million black carbon free cookers would save over one million lives per year, reduce birth defec
19 replies, posted
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[URL=http://www.pnas.org/content/early/2011/07/08/1105209108]PNAS - Association of selected persistent organic pollutants in the placenta with the risk of neural tube defects
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Pregnant mothers who are exposed to pesticides and smoke are as much as four times more likely to give birth to infants with serious birth defects.
Neural tube defects, or NTDs, are brain and spinal cord defects with the most common of them occurring when the spinal column does not close during the first trimester and results in nerve damage and paralysis. They are common and can occur in one of every 1000 live births in the United States.
Zhu and his team examined fetuses from four rural counties in northern Shanxi province. Here, NTDs occur at a much higher rate of 14 out of 1000 births.
[B]Black Carbon Free cookers could eliminate indoor coal air pollution
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[IMG]http://4.bp.blogspot.com/-AwGyVFw6gAI/TicNisBxbLI/AAAAAAAAMFQ/J_sPlmNnULM/s1600/biogasburner2.png[/IMG]
[URL=http://www-ramanathan.ucsd.edu/files/SuryaWhitePaper.pdf]Ramanathan estimates that “providing alternative energy-efficient and smoke-free[/URL] cookers and introducing transferring technology for reducing soot emissions from coal combustion in small industries could have major impacts on the radiative forcing due to soot.” Specifically, the impact of replacing biofuel cooking with black carbon-free cookers (solar, bio, and natural gas) in South and East Asia is dramatic: over South Asia, a 70 to 80% reduction in black carbon heating; and in East Asia, a 20 to 40% reduction.
[IMG]http://2.bp.blogspot.com/-hyPDe-HpF-w/TicN4y78WTI/AAAAAAAAMFU/B5vNcMXLgtk/s1600/solarcookers.png[/IMG]
Parabolic domestic cookers: These cookers are parabolic dish cookers of about 1.4 meter diameter popularly referred to as SK14 and cost about $100. They are advertised as able to cook rice for a family of up to ten people in about 30 minutes.
Parabolic community dish cookers: These new dish cookers are 2.3 meter in diameter, and cost about $500. They are made by PRINCE group in India, among others. These dish cookers are capable of cooking meals for around 40 students in one hour and are recommended for use in schools where mid-day meal is served.
Biogas plants and burners: To supplement operation of solar cookers, biogas plants are recommended. Biogas will be required for cooking during evenings and nights and on cloudy days, as well as for cooking operations like frying, bread making, etc. which are difficult on solar cookers. One unit can serve four families comfortably and costs 3 about $1000. Family-size (2-4 m gas per day) biogas plants have been disseminated and popularized in India, China and many other countries (Bhat et al., 2001). Over 3 million biogas plants have been built in India alone.
Interim Milestone: Adoption of 100 million clean and efficient cookstoves by 2020([URL=http://%20files.eesi.org/moss_110910.pdf]Global Alliance for Clean Cookstoves)[/URL]
Global Market Size = 500-700 million households
-Regional = 100s millions of homes for each of Africa, China, and India
•Current Activity:
-Improved stove sales today likely on scale of single millions per year
-Advanced stove sales today likely on scale of under 1 million per year
[IMG]http://3.bp.blogspot.com/-3EcrcGE5mU8/TicO1wAFHFI/AAAAAAAAMFY/iWz0TqHUOkc/s1600/sootwarming.png[/IMG]
[I]Soot is about 40% of the global warming effect of carbon dioxide now and will still be about 25% of it in 2050[/I]
18% Residential biofuel burned with traditional technologies is causing the total soot. Clean cookers and home heating in the developing world would also be like getting 8% of current carbon dioxide reduced (about 2.5 billion tons of CO2 per year equivalent.)
[QUOTE]Persistent organic pollutants (POPs) have been associated with a wide range of adverse health effects. Our case–control study was performed to explore the association between placental levels of selected POPs and risks for neural tube defects (NTDs) in a Chinese population with a high prevalence of NTDs. Cases included 80 fetuses or newborns with NTDs, whereas the controls were 50 healthy, nonmalformed newborn infants. Placental concentrations of polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides, polychlorinated biphenyls, and polybrominated diphenyl ethers were analyzed by gas chromatography–mass spectrometry. The medians of PAHs, o,p′-isomers of dichlorodiphenyltrichloroethane (DDT) and metabolites, α- and γ-hexachlorocyclohexane (HCH), and α-endosulfan were significantly higher in case placentas than in controls. PAH concentrations above the median were associated with a 4.52-fold [95% confidence interval (CI), 2.10–9.74) increased risk for any NTDs, and 5.84- (95% CI, 2.28–14.96) and 3.71-fold (95% CI, 1.57–8.79) increased risks for anencephaly and spina bifida, respectively.[/QUOTE]
[URL=http://www.pnas.org/content/suppl/2011/07/11/1105209108.DCSupplemental/pnas.201105209SI.pdf]Supplemental Information[/URL]
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Source: [url]http://nextbigfuture.com/2011/07/700-million-black-carbon-free-cookers.html[/url]
We're over-populated as is. I understand it's a tragedy when someone dies but 1 million people a year would exacerbate problems even more.
I don't understand what the fuck any of this is.
[editline]20th July 2011[/editline]
Parabolic cookers? Who would ever use one...
[QUOTE=Big Ben;31240417]We're over-populated as is. I understand it's a tragedy when someone dies but 1 million people a year would exacerbate problems even more.[/QUOTE]
I used to believe this too but it's been shown that as standard of living and health goes up, birth rates decrease in huge amounts
I believe the working theory was that if a third-world family won't lose all its members as quickly they'll be able to provide for themselves with less people and won't have as many kids
This article is horrible written, first it talks about birth defects and pesticides, then to cookers, then back to pesticides. I also fail to see how they consider bio-gas carbon free, it's still releasing CO2 and water when ignited, around the same levels as natural gas.
God damnit Eudoxia, you're at it yet again!
[QUOTE=Zeke129;31240450]I used to believe this too but it's been shown that as standard of living and health goes up, birth rates decrease in huge amounts
I believe the working theory was that if a third-world family won't lose all its members as quickly they'll be able to provide for themselves with less people and won't have as many kids[/QUOTE]
Very true, even in theory.
Sustainable life means a sustainable lifestyle; which in turn offers everyone the ability to be happier with where there at, whether it be a family of 3 or 10.
Large families will happen whether we like it or not, might as well prepare for it all in any way possible.
...How expensive are these things?
I've heard about these.
Burning biofuels like wood in African countries is one of the largest uses of energy in Africa I believe.
These are fairly inexpensive and don't require anything to be on fire.
[editline]21st July 2011[/editline]
[QUOTE=Smoot;31240421]I don't understand what the fuck any of this is.
[editline]20th July 2011[/editline]
Parabolic cookers? Who would ever use one...[/QUOTE]
It's a dish shaped like a parabola with a reflective material that reflects sunlight to cook food.
People living in an underdeveloped country would use one.
[editline]21st July 2011[/editline]
[QUOTE=ExplodingGuy;31240484]This article is horrible written, first it talks about birth defects and pesticides, then to cookers, then back to pesticides. I also fail to see how they consider bio-gas carbon free, it's still releasing CO2 and water when ignited, around the same levels as natural gas.[/QUOTE]
Where did they say bio-gas is carbon free?
These cookers work by reflecting sun light. They don't run on biofuel at all.
[editline]21st July 2011[/editline]
Dunno why this article calls them carbon-free cookers. I call them solar cookers but whatevs.
[QUOTE=Big Ben;31240417]We're over-populated as is. I understand it's a tragedy when someone dies but 1 million people a year would exacerbate problems even more.[/QUOTE] Yea and its not like global warming is bad right. I mean if we destroy are environment there will be less people so then the environment can get better and make more resources :downs:
[QUOTE=Big Ben;31240417]We're over-populated as is. I understand it's a tragedy when someone dies but 1 million people a year would exacerbate problems even more.[/QUOTE]
Do I hear you volunteering yourself for the cull?
[QUOTE=VengfulSoldier;31244794]...How expensive are these things?[/QUOTE]
bad reading
[QUOTE]and cost about $500.[/QUOTE]
bah, enough people in the world already
read it as 700 million black, then I skipped over carbon for some reason... Free hookers.
[QUOTE=Laferio;31246325]read it as 700 million black, then I skipped over carbon for some reason... Free hookers.[/QUOTE]lol !!! omg ! free black hookers XDDD
[QUOTE=Big Ben;31240417]We're over-populated as is. I understand it's a tragedy when someone dies but 1 million people a year would exacerbate problems even more.[/QUOTE]
Also don't forget: While humans are part of the problem, they can be part of the solution. More people in the world = more chance of somebody fixing our problems.
[QUOTE=MrEndangered;31248366]Also don't forget: While humans are part of the problem, they can be part of the solution. More people in the world = more chance of somebody fixing our problems.[/QUOTE] Better the quality of life = less children a person will have as well.
And better education, I heard more educated people have less children due to being more cautious with protection and birth control.
Hehehehe..."PNAS"
True, you see more families with a big number of family members in third world countries than in first world countries.
[QUOTE=Smoot;31240421]I don't understand what the fuck any of this is.
[editline]20th July 2011[/editline]
Parabolic cookers? Who would ever use one...[/QUOTE]
Parabolic solar panels are able to collect sunlight in a much more focused manner than flat panels.
Really all you'd have to do is lay the food in the middle of the parabola, where the light is focused, to cook much faster and much more efficiently.
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