In a legal complaint about inaccuracies in Swindle, one would expect meticulous accuracy, but once again in their statements about sulphates, RMS and the 37 profs [actually Bob Ward -TL] make claims in their complaint that are inaccurate according to the recent IPCC AR4. They say:
It has been well-established in the scientific literature that the period of cooling that was most evident over North America and Europe between about 1940 and 1976 was largely due to increased concentrations of aerosols (particularly sulphates) released into the atmosphere by industrial processes, such as the combustion of coal. These aerosols lowered the amount of solar radiation reaching the Earth’s surface, for instance by scattering sunlight. The concentrations of these aerosols have been shown to be highest in the Northern Hemisphere, close to their industrial sources. A paper by David Stern, published in the journal ‘Chemosphere’ in 2005, showed that sulphurous emissions around the world increased sharply between 1945 and about 1989, since when they have declined markedly. Sulphuruous emissions peaked in North America and Europe during the 1970s.
However the IPCC Fourth Assessment Report Second Draft chapter 2, page 30, says:
However, over the same period SO2 emissions have been increasing significantly from Asia which is estimated to currently emit 17TgSyr-1 (Streets et al., 2003) and from developing countries (e.g., Boucher and Pham, 2002). The net result of these combined regional reductions and increases leads to uncertainty in whether the global SO2 has increased or decreased since the 1980s (Lefohn et al., 1999; Van Aardenne et al., 2001; Boucher and Pham, 2002),
Why would RMS [actually Bob Ward -TL] allege so categorically that sulphate emissions “declined markedly” after 1989, when the contemporary AR4 report says that no one can say whether there has been an increase or decrease. This is the sort of over-reaching that discredits their complaint.
Something else that the IPCC Fourth Assessment Report Second Draft says, and it’s on every single page:
Do Not Cite or Quote
There’s a reason why it says that. Let’s see what the actual report rather than the draft says:
The most recent study (Stern,
2005) suggests a decrease in global anthropogenic emissions
from approximately 73 to 54 TgS yr-1 over the period 1980
to 2000, with NH emission falling from 64 to 43 TgS yr-1 and
SH emissions increasing from 9 to 11 TgS yr-1.
The AR4 report supports Ward. This is why you are not supposed to quote from the draft, since it may contain errors or omissions that are corrected in the final report.