Gore's effect on Leo

From this article:

So just how did The Departed actor [Leonardo DiCaprio] become so climate conscious?

“About 10 years ago, Al Gore explained to me what climate change and global warming was, the science behind it and the decades of research he'd done on the subject,'' answered Leo.

“It really propelled me to want to be more vocal about the issue, because it seemed to me, that the change of weather that we'd been having, the flooding, the hurricanes, all these things, there wasn't enough of a connection being made in the mainstream media.''