How do we become 100 percent renewable?

Energy production is a major source of global carbon dioxide emissions. Switching to renewable energy sources would result in significant reductions in emissions. A new report concludes that even though the necessary technology and infrastructure is available to increase the use of renewable energy, ineffective approaches and disapproving attitudes are still holding us back.The UN Intergovernmental Panel on Climate Change (IPCC) has confirmed that the most severe effects of global warming can be avoided if action is taken now. Air pollution is one of the largest challenges for cities across