Mother Nature Network (mnn.com) was a news and information website focused on sustainability and ranked by Alexa Internet as the most visited for-profit website in the world in its environmental category. It was labeled "the green CNN" by Time magazine, "green machine" by the Associated Press, and "best of the breed" by Fast Company. Founded in 2009 by former marketing executive Joel Babbit and Rolling Stones keyboardist Chuck Leavell, it was the flagship property of Narrative Content Group, whose equity partners included CNN and Discovery Inc.

Charles Alfred Leavell is an American musician. A member of the Allman Brothers Band throughout their commercial zenith in the 1970s, he subsequently became a founding member of the band Sea Level. He has served as the principal touring keyboardist and musical director of the Rolling Stones since 1982. As a session musician, Leavell has performed on every Rolling Stones studio album released since 1983 with the exception of Bridges to Babylon (1997). He has also toured and recorded with Eric Clapton, George Harrison, David Gilmour, Gov't Mule and John Mayer.