Guy Riel covers environmentalist revolutionaries from Bill McKibben to the Turkey protestors and why governments are right in trying to crack down on them.
![](http://www.greensocietycampaign.org/wp-content/uploads/2013/07/p1256.jpg)
Guy Riel covers environmentalist revolutionaries from Bill McKibben to the Turkey protestors and why governments are right in trying to crack down on them.