c**i 发帖数: 6973 | 1 I have read for about half a year that due to high petroleum cost, people
are thining about the unthinkable. Like, generate electricity from sources
that was not seriously contemplated. But none of them explains the mechanism
, how th esystem might work and how costly it would be (so far, coal-powered
plants are one of the cheapest, and almost every nation uses it).
Katie Zezima, Converting Methane Gas From Manure Into Electricity. New York
Times, Sept. 24, 2008.
http://www.nytimes.com/2008/09/2 |
|