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To: Moominoid who wrote (19140)5/19/2002 3:15:04 AM
From: smolejv@gmx.net  Read Replies (1) | Respond to of 74559
 
Re global climate change I would not be so sure...I read lately something on this subject to the effect there's 10^4 or something difference between what one assumed and what the new model shows. Albedo effect? Catalyzing influence? Would not know...

dj



To: Moominoid who wrote (19140)5/19/2002 3:27:20 AM
From: Maurice Winn  Read Replies (1) | Respond to of 74559
 
<Diesel particulates are a serious human health problem but not much of a problem re global climate change. >

David, we had a yellow Lada in Antwerp in 1987 and parked it outside. As dew condensed and little trickles of water ran down, leaving little trails in the morning, the soot would be washed away leaving a bright yellow streak. So there was plenty of soot in the air, settling out on leaves, cars, clothes and in lungs.

Antwerp has a large proportion of diesel vehicles [maybe half or thereabouts - maybe 70%] Bingo .... Google does it again google.co.nz

62.3% diesel sales in Belgium/Luxembourg.

That's an interesting link. Ricardo is a top consulting company [and engine developer etc] so that's good information. It seems that diesel engines for cars have been making great progress.

Anyway, Belgians should worry a lot more about the stuff from their tobacco than their diesel engines [and diesel furnaces in their homes]. Their tyres will be more of a problem than cars if they go reducing diesel car emissions [tyre rubber contains carcinogenic aromatics which make the tyres flexible and wear debris pollutes the air].

Also, the bacon they fry and other high temperature cooking is more of a health hazard than the diesel exhaust [my guess] but you can't choose the air you breathe.

Diesel particulates are insignificant for climate change [though I suppose soot on snow increases melt rates to a tiny extent and rate of snow cover reduction but I guess that's insignificant].

Mqurice