04/21/2014 09:31 pm ET Updated Jun 21, 2014

My Conversation With Ian Somerhalder

Tomorrow night, I'm joined by actor and environmental activist Ian Somerhalder. For his turn in the hit drama The Vampire Diaries, as well as his portrayal of one of the Lost survivors, he has amassed legions of fans. Somerhalder launched a foundation to positively impact the planet and is a correspondent for Showtime's Years of Living Dangerously series, which explores issues of climate change.

In the clip below, he talks about how he makes the issue of climate change attractive to his younger fans.

For more of our conversation, be sure to tune in to Tavis Smiley tomorrow tonight on PBS. Check out our website for your local TV listings: