Gore's power bill shows, however, that the former vice president may be doing just that.
Gore purchased 108 blocks of "green power" for each of the past three months, according to a summary of the bills.
That's a total of $432 a month Gore paid extra for solar or other renewable energy sources.
The green power Gore purchased in those three months is equivalent to recycling 2.48 million aluminum cans or 286,092 pounds of newspaper, according to comparison figures on NES' Web site.
NES joined the TVA program in 2000 to give power customers a way to support environmentally sound sources of electricity.....
"Every family has a different carbon footprint," said Kalee Krider, a spokeswoman for Gore. The Gores' 10,000-square-foot house on Lynnwood Boulevard has a large one.
The Green Power Switch program isn't all that Gore and his wife, Tipper, are doing, Krider said.
They use compact fluorescent light bulbs and are in the midst of a renovation project that includes having solar panels installed on their home to reduce fossil fuel consumption, she said.
Their car? A Lexis hybrid SUV.