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Pastimes : Clown-Free Zone... sorry, no clowns allowed
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To: Moominoid who wrote (212078)1/1/2003 1:47:40 PM
From: Tommaso  Read Replies (3) of 436258
 
From what I read (most recently, in Scientific American)incremental improvements in batteries have been quite disappointing. Seems to me that ethanol or methanol powered internal combustion engines are nearly as clean as hydrogen, though they do add carbon dioxide. The whole issue of what CO2 is doing to make the planet less habitable for human beings is very far from settled. Some things I have read suggest that plant life on earth suffers from an insatiable craving for more CO2; I have heard of studies that show that co2-enriched atmospheres in greenhouses cause plants to grow faster. The charm of hydrogen is, of course, that it just turns to water. But my own empirical experience with hydrogen has been that it is much harder to handle and more dangerous than other fuels. I have met people who feel the same way about methane, so maybe I am just prejudiced the way they are. I have experienced hydrogen explosions, and you notice no one makes airships using it, though it is about one-eighth the weight of helium (I think).
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