DENVER
03/18/2010 05:12 am ET Updated May 25, 2011

Reducing our carbon footprint

Dear Editor:

As the eyes of the world shift focus toward COP-15 in Copenhagen, Denmark, this month the world holds its collective breath waiting to see what the United States will do.

The USA did not ratify the Kyoto Protocol in 1997. We have lost valuable time in the necessary reduction of

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