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Catalytic converters, (was Speaking of evangelizing andproselytizing....).
On Jan 15, 10:56�pm, "CalifBill" wrote:
http://www.boatingmag.com/article.asp? Four stroke outboard fans will find the final paragraph of that article extremely interesting. Regulators love to target boats as significant contributors to air and water pollution, when in reality that is more often not the case. There are so few boaters that passing a law to "clean up boating" doesn't cost anybody enough votes to matter, but the general public (typically envious of the "rich snobs" who can afford a boat) wants to see some sort of action taken to clean up the environment. Most members of the general public would rather see that action taken against somebody else. Boaters are a perfect target. Average private automobile usage is said to be about 18,000 miles per year. Assuming that there is a mixture of freeway driving and time spent creeping through traffic jams factored into that total it might be reasonable to guess that the average speed a private auto travels is 40 mph. If my car is "averge", it probably runs for 450 hours per year. Add an hour a week for idling at stop signs, red lights, etc, and the typical family car is probably up to about 500 hours per year. In my county, there are almost two million registered cars and light duty pickup trucks. There could be 1-billion automobile operating hours per year, in one county alone. There are 35,000 boats registered as "cabin cruisers" in my entire state. There are another 100,000 or so registered as "runabouts". For purposes of my example, let's move every single one of those boats into my home county, imagining that they are *all* gasoline powered and that none of the runabouts has an outboard. Two absurd assumptions, but it dramatizes my point. 135,000 boats operating an average of 100 hours per year (generous, many run a lot less) will log 1,350,000 hours- or less than 15% of the automotive total. Now spread the boats back into the counties where they actually originate, add in the cars and trucks registered in all of those counties, and I'd be surprised if pleasure boat exhaust accounted for more than a percent or so of all air pollution. Point being, even if they took every boat off the water entirely- (and that may be the goal of some of these fanatics)- the decrease in air pollution would be almost immeasurable. In fact, assuming that the ex- boaters decided to buy an extra car and or go for a Sunday drive instead of a weekend cruise, total air pollution would be more likely to go up, rather than down. |
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