Cities and Energy Consumption

Humans can now officially be called an urban species. More than half of the global population now live in cities and the United Nations says that by 2030, 60 percent of us will live in them.

Yet according to U.N. Habitat, the world's cities emit almost 80 percent of global carbon dioxide as well as "significant amounts of other greenhouse gases."

Put simply, if you want to tackle climate change, tackle the cities. |Read more|