Cities will be key to a low carbon, resilient global economy able to address and adapt to climate change. Many are emerging as leaders cutting emissions and greening infrastructure. Photo ©Pline
Copenhagen is one of the greenest and most bicycle-friendly cities in the world. It boasts a so-called "Cykelslangen" or "Cycle Snake", waste baskets angled for cyclists, LED lights that indicate whether riders have to speed up to catch the green wav, and specially treated cobblestone streets that help make biking easier.