Birke Baehr is only twelve years old but is becoming a well known advocate for organic food and organic farming. His goal is to be an organic farmer, or as he calls it a “Future Lunatic Farmer” Check out his website.
http://www.birkeonthefarm.com/
He has written a book “Birke on the Farm: The Story of a Boy’s Search for Real Food” to spread the word one kid at a time.
I first saw his TED talk on youtube -“What’s Wrong With Our Food System? And How Can We Make A Difference?” The link for this is: http://www.youtube.com/watch?v=F7Id9caYw-Y