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This should be the theme song of the High Priests of Global Warming assembled in Copenhagen
This news study reinforces the conclusion that a broader perspective of the role of humans in the climate system is needed, and that the radiative effect of CO2 may not the dominate human role as concluded by the IPCC report and as being discussed in Copenhagen./QUOTE]
COP15 quietly addressing other half of the emissions problem
While all media attention is on carbon dioxide, negotiators have not forgotten the greenhouse gases that are believed to constitute the other half of man’s contribution to global warming.
Morten Andersen 14/12/2009 22:10
Changes in countries’ positions on reducing their emissions of carbon dioxide are widely reported on an almost daily basis. In contrast, five other substances also meant to be regulated under the UN Framework Convention on Climate Change (UNFCCC) are seldom mentioned. This is a bit strange, as they together account for a manmade contribution to climate change just as big as that of carbon dioxide. And for some of these substances, a reduction in emissions would yield fast results.
...
Three substances are currently in focus. These are methane which is released from coal mines, landfills and agriculture; black carbon, which is soot from incompletely burned fossil fuels and biomass; and hydrofluorocarbon chemicals (HFCs) which are widely used in refrigerators and air conditioners ...
... Although emissions of black carbon are concentrated in the tropics, they have a strong forcing influence in snow-covered areas because of albedo effects: black carbon that falls onto snow and ice covered surfaces absorbs rather than reflects sunlight, warming the surface and causing melting.
A number of scientific studies have found that black carbon may be responsible for as much ice and snow melt as greenhouse gas emissions in the Arctic and for springtime snow in Eurasia. The distribution of black carbon emissions is somewhat important because of its relatively short atmospheric lifetime. Emissions near Arctic areas or other areas with year-round snow cover will have a stronger albedo impact than emissions in the tropics, as more black carbon will fall onto the ice.
Given the concentration of these emissions in Asia, especially those associated with home cook fires having dire local air pollution effects, there is considerable room to focus on reducing black carbon emissions as part of international development projects. Projects like distributing or subsidizing inexpensive but efficient cook stoves for rural areas could help reduce premature mortality resulting from air pollution and also reduce black carbon emissions.
Controlling these emissions from industrial sources is somewhat more complicated, as many of the technologies to clean up black carbon will also reduce sulphate aerosol emissions, and therefore counteract some of the reduction in climate forcings.
Recent and ongoing research on the large role of black carbon emissions in contributing to atmospheric warming is another reminder that the issue is more complicated than CO2 emissions alone, and that cleaning up other forcings like black carbon may prove less expensive, more politically viable, and more effective in the short-term while other strategies are developed and implemented to address longer-term concerns.
Building on work by Veerabhardran Ramanathan of the Scripps Institution of Oceanography, San Diego, Calif., Lau and colleagues conducted modeling experiments that simulated the movement of air masses in the region from 2000 to 2007. They also made detailed numerical analyses of how soot particles and other aerosols absorb heat from the sun.
"Field campaigns with ground observations are already underway with more planned to test Lau’s modeling results," said Hal Maring who manages the Radiation Sciences program at NASA Headquarters in Washington. "But even at this stage we should be compelled to take notice."
Thanks Wayne. This is an excellent example of why it's useful to keep reading beyond Pielke Sr..
1. His commentary is wrong about Copenhagen http://en.cop15.dk/news/view+news?newsid=2989:
Ghoti,2. His commentary implies that the IPCC reports ignored black carbon. They didn't. Its distribution and effects were and are the subject of major research. This article is an indication of what was thought in 2007, how that had changed since 1990, and the work that Lau built on for the paper Pielke refers to.
http://www.yaleclimatemediaforum.org/2009/07/black-carbon-and-global-warming/
Incidentally, I note that Lau's work is all about modelling. Pielke's exerpt does not include these paragraphs http://www.nasa.gov/topics/earth/features/himalayan-warming.html
Cheers,
Ghoti
Defensive? That's not how I felt. A bit weary perhaps, because I've read enough Pielke Snr (and I admit that I sometimes get Snr and Jnr confused) to feel that this blog has a very strong pattern of... um.... incomplete commentary. A blog is personal; he's entitled to express his opinions and to be selective about what he discusses. I have found that his selectiveness consistently misrepresents the IPCC reports and processes. From my personal point of view that's been useful: I probably wouldn't have read nearly as much as I have if I hadn't been confronted with so many contradictions and questions. From the perspective of political decisions I think it's very unfortunate.Ghoti,
I think you've taken the wrong message from Pielke's comment and is needlessly defensive. If you read Pielke Snr you would know that...
...and a lesser man would take offence at your "wayneL only reads Pielke" innuendo. I'll just marvel at the capacity for warmists to add ad hominem all the time. Subtle though, not quite so obnoxious as some other posters.
Monbiot and Plimer finally get to have somewhat of a debate on Lateline. While I still haven't read Plimer's book I found Plimer's total avoidance at answering any question directed to him about claims in his book to be extremely frustrating.
http://www.abc.net.au/reslib/200912/r487279_2511549.asx
I lost interest well before it ended.It wasn't helped by Tony Jones' inability (or unwillingness?) to keep the discussion under control.
Pathetic all round.
I think Tony Jones controlled the debate exactly how he wanted it to go.I agree, derty. I found Professor Plimer's book much more persuasive than his physical presence or his argument last night.
It wasn't helped by Tony Jones' inability (or unwillingness?) to keep the discussion under control.
Pathetic all round.
If we torture the data long enough, it will confess. (Ronald Coase, Nobel Prize for Economic Sciences, 1991)
Why do you call this a good article?Here is a good article on the diabolical state of the long term surface temperature trend data set over land.
http://pajamasmedia.com/blog/climat...ia-asheville-and-new-york-city-pjm-exclusive/
Why do you call this a good article?
I ask because it's dated 15 Dec but it doesn't mention any of the explanations or responses to the allegations it repeats. They aren't hard to find - I posted one myself on one of these threads. They might not be convincing, but surely a good article would acknowledge that they exist, and a good Web article would link to at least some of them?
Cheers,
Ghoti
Not quite right, Wayne. "The Australian" reported on it quite fully. And there have been other instances of reasonable balance in this paper.Gore has been spouting the most unimaginable nonsense at COP15 and is allowed to get off scott free. Only the blogosphere has called him out.
I didn't say provide the refutations; I said acknowledge that they exist. Or at least that someone has tried, even if the author doesn't accept them. I particularly expect that when the author's academic or professional qualifications are prominently displayed in a way that lends authority to his statements.Hang on! You're demanding that a media article provides refutations of itself to be a good article?
On the strength of this article? My question was why do you think it's a good article? To rephrase, what criteria are you using to assess it? At the moment you must excuse me if I suspect confirmation biasThis is something that we have seen to be be actively and corruptly prevented deep in the bowels of the IPCC and the warmanista movement.
You must excuse me if I suspect double standards.
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