After visiting Fort McMurray, he's speaking out about the oil sands, and how our government is letting the world down with its pro-oil actions. He claims current government actions (and inactions) are in violation of long standing treaties with Canada's First Nations.
Rather than having so many workers reliant on the oil patch, he'd prefer to see people employed in jobs developing clean energy sources.
And it sounds as though his grandchildren are a big part of his reasons for all that he's saying and doing.
He urges people to seek out the facts for themselves. Sounds like we all have a responsibility to do exactly that.