Earth Day around the world

By Alan Boyle For commercial imaging satellites, every day is Earth Day: In honor of today's eco-conscious holiday, GeoEye is releasing four recent snapshots of the planet, taken by the company's GeoEye-1 satellite as it orbited 423 miles (681The behaviors we need to protect the environment are not particularly oppressive. Indeed, many are things we'd want to do anyways. But they're often a big change from what we're currently doing.From Earth911's Mary Mazzoni:An estimated one in 10 Americans took part in the first Earth Day, observed across the country on April 22, 1970. Brainchild of Wisconsin Sen. Gaylord Nelson, the first national Earth Day unifiedTens of millions of people across the world have taken part in the world's foremost environmental festival – Earth Day. But organizers say any festivities should be laced with a warning.It's the

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