In the following video, Motley Fool tech and telecom analyst Andrew Tonner takes a question from a Fool follower on Facebook, who asks, "What are your thoughts on green tech investing and any related ETF recommendations?"

Green tech companies have a lot of long-term potential. But do they make good investments?
Invest better with The Motley Fool. Get stock recommendations, portfolio guidance, and more from The Motley Fool's premium services.