Katie Herzog for GRIST:  Half a million solar panels were installed every day in 2015.  According to a new report from the International Energy Agency (IEA), renewable energy, mostly solar and wind, accounted for more than half of all new electric capacity added in the world last year, a 15 percent jump from 2014. Globally, there is now more renewable power capacity than coal power capacity.

Clean energy growth was especially high in China, which was responsible for about 40 percent of all new clean energy capacity. Get this: In China in 2015, two wind turbines were installed every hour.

This surge in renewables, according to the IEA, can be attributed to policy changes, lowered costs, and improvements in technology.  Cont'd...