mariaholeo.jpgWhile many celebs like to promote environmental causes, the readers of Dailygreen.com say Mariah Carey is anything but green.

In a poll for the site, Carey is singled out for her gas-guzzling and emission-expelling lifestyle that includes flying her private trainer on a private jet from New York to St. Barths.

But other celebs earn their "green-cred" by practicing what they preach.

Leonardo DiCaprio was named the best male celebrity for his ongoing activism and the creation an environmental foundation. He also co-wrote, co-produced and narrated a documentary about the dangers of global warming.

Oprah was singled out as the woman doing the most to protect the environment and often features important environmental issues on her talk soon.

Maybe Oprah can have a little chat with Mariah, it is Earth Day after all!