Climate Home: Installations of renewable power plants registered their biggest leap on record last year as costs tumbled, according to the International Renewable Energy Agency. Wind and solar drove an 8.3% increase in global renewable generation capacity, growing 152 gigawatts to 1,985 GW, data released by the Abu Dhabi-based body showed on Thursday. Investment hit an all-time high of US$286 billion. In 2014, renewables accounted for almost half of all new power plants, according to leading analysis body the...