Chuck Leavell, environmentalist, author, and keyboardist for the Rolling Stones, provided the evening's entertainment.

Last updated May 25 2011: 6:01 AM ET

In this excerpt from Force of Nature, Edward Humes describes how Wal-Mart changed the way environmentalists looked at the company. More

Euros, private investments, telecoms as utility companies, and of course, Fukushima. 2011 has brought sweeping change to the world of green, and it's not even mid-year. A few trends that caught our eye. More

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