01/02/2009 05:12 am ET | Updated May 25, 2011

5 CEOs Who Made An Environmental U-Turn

A chief executive officer wields an awesome power over his companies' policies, employees and principles--and just how sustainable each will be. So when a previously ungreen CEO decides to adopt an ecologically responsible agenda, the effects can be wide-reaching, and exceptionally inspiring. Here's a list of the top 5 formerly environmentally oblivious business execs who've changed their tune for the greener.

1. Ray Anderson
He may be chairman now, but while he was the CEO of Interface, the world's largest producer of modular carpet tiles, Ray Anderson made one of the most massive reversals of attitude towards sustainability in history so far--he's one of the most memorable personalities in the popular documentary "The Corporation" because of his inspiring about-face.

Read more on Treehugger