This is a guest post by David Suzuki.
Cars, air travel, space exploration, television, nuclear power, high-speed computers, telephones, organ transplants, prosthetic body parts… At various times these were all deemed impossible. I’ve been around long enough to have witnessed many technological feats that were once unimaginable. Even 10 or 20 years ago, I would never have guessed people would carry supercomputers in their pockets — your smart phone is more powerful than all the computers NASA used to put astronauts on the moon in 1969 combined!
Despite a long history of the impossible becoming possible, often very quickly, we hear the “can’t be done” refrain repeated over and over — especially in the only debate over global warming that matters: What can we do about it? Climate change deniers and fossil fuel industry apologists often argue that replacing oil, coal and gas with clean energy is beyond our reach. The claim is both facile and false.
Facile because the issue is complicated. It’s not simply a matter of substituting one for the other. To begin, conservation and efficiency are key. We must find ways to reduce the amount of energy we use — not a huge challenge considering how much people waste, especially in the developed world. False because rapid advances in clean energy and grid technologies continue to get us closer to necessary reductions in our use of polluting fossil fuels.