Every time ACEEE's Green Book publishes its annual "Greenest Vehicles" list in the US it gets widespread derision on the lists because it doesn't include any diesels.
Their website says stuff like this: "Moreover, cleaning up or replacing diesel engines will be essential for cutting pollution from heavier vehicles such as buses, freight trucks, and trains." Nonsense: simply change to biodiesel fuel. End of problem. How come everybody knows about biodiesel except them? If American members would care to ask them that question, their address is: [EMAIL PROTECTED] They'll probably say "biodiesel doesn't cut NOx", but biodiesel doesn't contain sulphur and therefore NOx is easily controlled. More information here: http://journeytoforever.org/biodiesel_nox.html And why use this to negate everything it does cut? Like the cancer risk by more than 90% for instance. http://journeytoforever.org/biofuel_library/UCDavisSumm.html More emissions info here - see Biodiesel facts: http://journeytoforever.org/biodiesel.html Biodiesel http://www.biodiesel.org/pdf_files/emissions.PDF ACEEE sell their book for lots of money and their findings get reported throughout the mainstream press every year, but they don't know about these issues. Isn't that kind of disgraceful? From their website: A Challenge for Diesels Some consumers wonder why diesels--such as versions of VW's New Beetle--don't score well in environmental ratings, considering that they are more fuel efficient than their gasoline counterparts. The problem is that pollution control technologies don't yet work as well for the diesel as they do for gasoline engines. Achieving low tailpipe pollution and high fuel efficiency at the same time is a challenge faced by all combustion engines, and it is a particularly tough challenge for diesels. Moreover, the diesel's excess emissions are dominated by nitrogen oxides (NOx) and lung-clogging fine particles, pollutants that are among the worst from a public health perspective. Because diesels have for so long been given a break from strict pollution controls, car companies have only recently started to set ambitious clean-up goals. Engineers have to make up for lost time compared to gasoline engines, which now benefit from over three decades of experience with ever-tightening tailpipe standards. Emissions control breakthroughs might enable diesels to play a greater role in the future. Moreover, cleaning up or replacing diesel engines will be essential for cutting pollution from heavier vehicles such as buses, freight trucks, and trains. http://www.greenercars.com/greentomorrow.html#diesel GreenerCars.com: News and Articles Diesel-powered vehicles are highly efficient. Why don't I see them in your "Greenest Vehicles" list? It is still an open question whether diesel engines can be made clean enough to extensively exploit their efficiency advantage in the U.S. market. Today's diesels, such as Volkswagen's New Beetle GLS TDi (turbocharged direct-injection), score "Inferior" in Green Book ratings even though they are more fuel-efficient than their gasoline counterparts. The New Beetle 1.9-liter TDi diesel automatic rates 34 MPG in the city and 44 MPG on the highway, for an overall average of 38 MPG. That's 50 percent better than the 25 MPG average for the New Beetle with a 2.0-liter gasoline engine. But EPA allows the diesel version to emit five times as much nitrogen oxide (NOx) pollution as the gasoline-powered New Beetle, which now qualifies as both a low-emission vehicle (LEV) and ultra-low-emission vehicle (ULEV) nationwide. Automakers are working to clean up the diesel vehicle. For example, Ford is developing a version of the Focus sedan that uses advanced control technologies targeted to meet California's upcoming ULEV-II standards. They have equipped their laboratory test car with a special NOx clean-up device in which a solution of urea in water is sprayed on the catalyst to selectively reduce NOx from the exhaust stream. The vehicle also has a catalytic, soot-trapping filter to remove fine particles. Widespread use of such systems is still some years away, particularly if a new chemical such as urea needs to be widely distributed along with ultra-clean diesel fuel. Engineers at Ford and other companies trying to slash diesel emissions are making up for lost time, since today's gasoline engines benefit from over three decades of experience with ever-tighter pollution standards. http://www.greenercars.com/faq.html#diesel Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://webconx.green-trust.org/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
