Number of the Day: 80
by Collin Dunn, Corvallis, OR, USA 
on 10. 2.07
80 -- percent of the global market share for solar hot water owned by China.
80 million cubic meters -- the amount produced in China each year.
1 in 10 -- the number of Chinese households who have solar hot water heaters.
via ::CNN International; for $5, you can make your own solar water heater.
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