Tennessee Centre for Policy Research looked at Al Gore's energy bills to see if he practiced what he preached about green energy.
Figures released by the group under federal freedom of information rules show Gore consumed 221,000 kWh of electricity last year, more than 20 times the national average.
In fact his household consumption of energy rose between 2005 and 2006.
The group released this information under the title
'Al Gore's personal energy use is his own inconvenient truth'.
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