"Even if every American citizen biked to work, carpooled to school, used only solar panels to power their homes, if we each planted a dozen trees, if we somehow eliminated all of our domestic greenhouse gas emissions, guess what? That still wouldn't be enough to offset the carbon pollution coming from the rest of the world. If all the industrial nations went down to zero emissions it wouldn't be enough, not when more than 65 percent of the world's carbon pollution comes from the developing world."