Are Radio Shows on Renewable Energy an Exercise in Preaching to the Choir?

I had a great time with my family back east over the holidays, during which the subject came up: Uncle Craig, when you do radio shows and talk about renewable energy in an attempt to promote your books, aren’t you preaching to the choir?  Or, if it’s a show that has you on only so they can attack you, aren’t you speaking to people who hate your guts, and would never change their minds?

Good questions, to be sure.  There sure is a lot of truth there.  But my nephews convinced me that there is a world of people who live in the middle, who need to be pushed forward to understand the truth and take action accordingly.  They’re smart young men; I sure hope they’re right here.