09/04/2012 09:21 am ET

Celebrity Activists Who Have Smoked Pot: Morgan Freeman, Oliver Stone And More

As the movement to legalize marijuana gains traction, some environmental activists and celebrities are throwing in their support for legalization, while others have simply admitted to using pot at some point in their lives.

Many celebrities and politicians have publicly come forward as either current or reformed pot smokers. There are some, like Paul McCartney, who have reportedly left those days behind them. At the age of 69, McCartney told Rolling Stone that he smoked his share already. "Enough's enough," he said. On the other end of the spectrum are those still rolling, like famous director Oliver Stone. “It can be done legally, safely, healthy,” Stone insisted in a recent Associated Press interview.

Some environmentalists have voiced concerns over a report suggesting indoor marijuana growing may account for one percent of U.S. electricity consumption, with advocates arguing that by legalizing pot, the footprint could be reduced with more outdoor growing.

Take a look at the slideshow below of some environmentalists who have admitted to smoking pot, and share your thoughts on the marijuana debate in the comments below.

HuffPost Live will be taking a comprehensive look at America’s failed war on drugs Sept. 4 from 12-4 p.m. EDT and 6-10 p.m. EDT. Click here to check it out -- and join the conversation.

Pot-Smoking Environmentalists