We hope you all remember our "Why Cities?" infographic from back in June. If you don't, we are sharing it again. Sure, Grist called it "gorgeous" and Mashable saw the Infographic and said "cities are at the forefront of innovation" and we appreciate their kind words. But more importantly we are sharing it again because the world's cities do offer perhaps our greatest hope of addressing the impacts of global climate change by taking actions at the local level. And, well, OK we are also sharing it again because we do think it is a pretty cool infographic.