Contributed by Doug Cotton
Hawaii is the first American state to require solar water heaters in new homes.
From 2010 it will be illegal to issue building permits for single-family homes that do not have solar water heaters. Like the Bahamas, Hawaii relies almost totally on imported fossil fuels for its energy needs.
The measure was first introduced five years ago when a barrel of oil cost just $40. Since then, the cost of oil has more than tripled.
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