Oregonian: Canadian scientist and environmental activist David Suzuki is not optimistic that the world will do enough to stop global warming. But he has hope. Suzuki, in Portland on Wednesday for the World Affairs Council International Speaker Series, said the intelligence that created the wonders of the modern world must now save that world as it teeters on the brink of environmental crisis. He also spoke with The Oregonian’s editorial board. David Suzuki “We can see where the …