Sydney Morning Herald: General Motors executive says solar flares are responsible for climate change, not car emissions or CO2. Senior General Motors executive Bob Lutz has slammed scientists and environmentalists, saying global warming has little to do with humans and more to do with solar flares and sunspots. The self-confessed petrolhead and man who proudly claims to be a progenitor of the Chevrolet Volt electric car (due in Australia in 2012) still scoffs at global warming. Lutz, who in …