Celebs such as Leonardo DiCaprio, Pierce Brosnan, Ted Danson, Bette Midler, and Patrick Stewart have all taken on environmental causes, and enviros are welcoming the help, though they acknowledge that the pairing of indulgent Hollywood and the more simplicity-oriented environmental movement is sometimes an odd one. Denis Hayes, chair and CEO of Earth Day Network, which recently announced that DiCaprio would host its April 22nd event on the Mall in Washington, D.C., said, “Sure, it’d be preferable if policy issues could be discussed on a higher plane, but we live where we live.” For his part, DiCaprio says he has always wanted to make a difference and is now in a position to do so. Aside from hosting Earth Day 2000, DiCaprio has pledged to buy a fuel-efficient hybrid vehicle by the end of the year.