Earth Day: In 1972, EPA battled pollution; now it's politics

This June, in Rio de Janeiro, more than 120 presidents and prime ministers will get together for a meeting with much at stake for every person on our planet — and future generations.

The media, not entirely sure what to call the teach-in, started to refer to it as Earth Day. When dawn broke on April 22, students on college campuses across the nation began gathering to welcome the day with readings and vigils.

The media, not entirely sure what to call the teach-in, started to refer to it as Earth Day. When dawn broke on April 22, students on college campuses across the nation began gathering to welcome the day with readings and vigils.

A PBS series offers a low-key but encompassing explanation of climate change and lays out common-sense strategies for addressing it.

It's the so-called Rio+20 Earth Summit and so far it's gotten very little attention. But there's still time to change that. In fact, the United States could take the lead, starting, perhaps on Earth Day this Sunday. The idea behind the Earth Summits