(I just listened to this. It is worth while.)
The warnings are coming fast and furious, says David Suzuki in his 1989 CBC Radio series It's a Matter of Survival. He and other scientists look ahead 50 years into the future to paint a picture of what the world could be like if nothing is done to curb the human impact on climate change. They make the case that the time to act is now. The series galvanized the environmental movement in Canada, with more than 14,000 listeners writing letters of support. Find more episodes from David Suzuki's radio archive, here.