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Electric Vehicles’ Price at the Pump: 75 cents “per gallon”

3/30/2011 // By Mary Ellen Kustin

Last week, the global price of oil rose above $105 per barrel and the national average price of gasoline hit $3.55 per gallon– the highest ever for this time of year.  However, if you could plug your car into an […] Read more >

Bison bulls establish a hierarchy in Yellowstone National Park in a photo by J.L. Wooden

Passenger Pigeons, Bison and Global Warming

11/15/2010 // By Roger Di Silvestro

It was probably the most astonishing wildlife spectacle in all of American history—the migration of the passenger pigeon, a bird larger than the mourning dove, with a bluish back and a rosy breast—the most common bird on the continent in […] Read more >