Renewables met all of the rise in global demand for electricity during the first half of 2022, a report from Ember shows. The London-based energy think tank found that an increase in solar, wind and hydroelectric power prevented a possible 4 per cent rise in fossil fuel generation and a resulting 230 million tonnes of CO2 emissions. That is the equivalent of taking more than 49 million petrol-powered cars off the road for a year. Ember used data from 75 countries that make up around 90 per cent of the world’s electricity demand and compared the first six months of 2022 to 2021. The report foun…