Economics
Low-Carbon World Needs $500 Billion Annual Investment, WEF Says
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Preventing the worst effects of global warming without harming economic growth requires doubling annual investments in renewable and low-carbon energy to $500 billion a year by 2020, according to the World Economic Forum.
Government policies must expand development of clean energy sources such as solar panels and wind turbines to limit a global temperature increase of 2 degrees Celsius (3.6 degrees Fahrenheit) from pre-industrial levels, a goal that environmental groups and scientists say is needed to halt the adverse impact of a warming planet.