If you didn't feel guilty about your TV habits already, here's a new reason: a chemical used in making flat-screen televisions has been found to be a potent greenhouse gas, 17,000 times stronger than carbon dioxide. In a study published in the journal Geophysical Research Letters, atmospheric chemist Michael Prather called nitrogen trifluoride, or NF3, "the missing greenhouse gas," and warned that the climate could suffer as the chemical is produced in ever greater amounts to meet soaring demand for LCD displays. If all of the NF3 produced in 2008 were released into the atmosphere, it would have as much warming effect as 67 million metric tons of carbon dioxide, the study found -- about the same as the annual CO2 emissions of Austria. NF3 isn't covered by the Kyoto Protocol because it was only being produced in tiny amounts in 1997 when the treaty was negotiated. Ironically, NF3 was developed as an alternative to perfluorocarbons, greenhouse gases that are governed by Kyoto.
source: The Guardian, CNet News, The Press Association
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Max8806 Posted 10:34 am
04 Jul 2008
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Craig Allen Posted 5:34 pm
04 Jul 2008
On Friday, 5th July Australia was presented with a draft report by Ross Garnaut on options for the implementation of an emissions trading scheme. The report is commissioned by the government prior to the last election. They seem to be holding firm on their promise to commence the scheme in 2010. The response in the media and by politicians has been remarkable for the fact that there is no hint of denial of the problems posed by climate change, of the fact that we have a tough task before us as a nation, or that we must none-the-less face up to and stoically accept the pain that lied ahead while doing all we can to reduce emissions
The Australian newspaper
We must act now on climate change: Professor Garnaut
PDF of Professor Garnaut's draft report
Video of Garnaut at the National Press Club
A bitter political pill
Cut taxes to soften climate pain
We must act now on climate change
No mercy for dirty power, says Garnaut's climate report
Target for 2020 not the main aim
The Age Newspaper
No time to waste on tackling climate change
Act now or face disaster, Garnaut report warns
'One input' wields an unyielding message
Building our own asteroid
ABC (Australian Broadcasting Commission) News
Garnaut urges emissions trading scheme 'without delay'
Govt urged to act swiftly on Garnaut findings
Garnaut report sparks call to arms for at-risk Barrier Reef
Rudd pledges action on Murray's Lower Lakes
The Sydney Morning Herald newspaper
Australia's harsh reality: adapt or perish
2100, a climatic odyssey
Miners at the coalface of change
Climate crisis 'diabolical'
Garnault's speach at the National Press Club
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Alison Wiley Posted 1:56 am
05 Jul 2008
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guade00 Posted 2:25 am
05 Jul 2008
And HFCs were designed as a replacement for CFCs and HCFCs, which are regulated by the Montreal Protocol. HFCs are dangerous in terms of global warming, but not nearly so in terms of ozone depletion, or so I am told.
It's hard to say that we shouldn't regulate all GHGs--maybe we should--but attacking commercial and individual dependence on fossil fuels and our sprawling residential development patterns is going to be the "make or break" difference.
We can regulate NF3, HFC, CFC, SF5, etc., out of existence and still face a catastrophe without solving the carbon question.
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amazingdrx Posted 2:47 am
05 Jul 2008
These solvents may not even be necessary. Chemical industry lobbyists are most likely behind their even being allowed.
Refrigerants can be found that aren't toxic to the climate, bet on it. If university research focused on these alternatives.
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racc Posted 4:32 am
05 Jul 2008
http://enochthered.wordpress.com/2008/07/03/nitrogen-trif ...
Talk about unintended consequences. Again, this shows that conservation is by far the best way of reducing GHG emissions. Technology does not seem to be doing very good so far.
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Cacaoatl Posted 7:28 am
05 Jul 2008
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Phil G Posted 3:54 am
07 Jul 2008
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Boyscientist Posted 4:50 am
07 Jul 2008
Instead of not buying a flat screen TV, how about driving your car less?
That CF3 is a previously unrecognized greenhouse gas is important news.
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Christy Posted 5:23 am
07 Jul 2008
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2wheeler Posted 5:28 am
07 Jul 2008
The information provided above does not say how much NF3 may be utilized in making a single LCD screen but must be very little. I'm guessing I'm still ahead with a lower carbon footprint for the new LCD TV, over its operating lifetime.
The best option would be to improve the factory production process for LCDs, solar panels, etc. to minimize losses during use of NF3 and to reclaim and reuse it (it sounds like it's being used as a vapor degreasing solvent of some kind). Perhaps it should be included in a future GHG protocol as a way to provide the proper price incentive to reduce the losses causing the GHG air pollution.
I'm agreeing with quade00 above. The entire GHG puzzle needs to be solved as a whole, and a lot of it has to do with our home vs. work location choices and daily transportation choices.
In a global perspective, the C02 equivalent of NF3 is equivalent to less than 0.8 percent of the 8.4 billion metric tons of CO2 emitted last year from anthropogenic fossil fuel combustion and cement making.
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cally carswell Posted 5:46 am
07 Jul 2008
Minnesota recently became among the first states in the country to require reporting of "superwarmer" usage and emissions. The new law will require Minnesota's pollution control agency to use that information to suggest cost-effective ways to reduce these emissions. In addition, by January, all car manufacturers must report the leakage rate of their auto air-conditioners and the information will be posted on the Web sites of the state's Attorney General and pollution control agency. The Minnesota Center for Environmental Advocacy spearheaded this legislation. You can read more about it here: http://www.mncenter.org/minnesota_center_for_envi/files/s ...
California has also taken early action to combat the effects of these gases. Hopefully other states follow suit soon.
For real policy lovers, the actual bill can be found here: https:/www.revisor.leg.state.mn.us/laws?id=296&doctype=Chapter&year=2008&type=0
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Transistoreyes Posted 9:24 pm
07 Jul 2008
Now the ozone layer is made up of a molecue called O3. 3 oxygen molecues together. in this state it is highly combustible when in large supply. (Old argument coming up) When we send rockets thru the ozone layer. It destroys alot more ozone than the gases could. When you see the rockets going up and the flames get brighter. The flames are bigger because they are causing spontaneous combution of the Ozone layer around them. Are we going to scrap the space program? Probably not. So we give them gases to blame for global warming. (Note this is from studying the makeup of the ozone layer in almost any encyclopedia. And my opinion of the truth as I see it.) Thanks for reading my rant.
Thinking for oneselve is dangerous. Only believe what your told. lol
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redsafety Posted 12:01 am
09 Jul 2008
I am all for protecting the environment, but this "threat" of global warming has no purpose but to destroy.
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Lela2100 Posted 9:25 am
14 Jul 2008
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