IPCC: Renewable Energy Can Exceed Global Demand

摘要

Close to 80 percent of the world's energy supply could be met by renewables by midcentury, if backed by the right enabling public policies, a new report shows. The findings, from more than 120 researchers working with the Intergovernmental Panel on Climate Change (IPCC), also indicate that the rising penetration of renewable energies could lead to cumulative greenhouse gas savings equivalent to 220 to 560 gigatonnes of carbon dioxide between 2010 and 2050. The upper end of the scenarios assessed, representing a cut of around a third in greenhouse gas emissions from business-as-usual projections, could assist in keeping concentrations of greenhouse gases at 450 ppm. This could contribute toward a goal of holding the increase in global temperature below 2 degrees C - an aim recognized in the U.N. Climate Convention's Cancun Agreements.