The Globe and Mail reports in its Tuesday edition that demand for oil, coal and natural gas will peak this decade, as the share of fossil fuels in the global energy supply drops because of a "phenomenal rise" in the use of clean energy technologies, says the International Energy Agency. The Globe's Emma Graney writes that the shift toward clean fuels is moving apace, the IEA said in its 2023 World Energy Outlook, released Tuesday. It says current climate policies will drive down the share of energy produced by fossil fuels to 73 per cent from 80 per cent by 2030. The IEA expects energy-related carbon dioxide emissions to peak by 2025. The IEA describes an energy system in 2030 in which clean technologies play a much greater role than they do today, with almost 10 times as many electric cars on the road worldwide, solar panels generating more electricity than the entire U.S. power system does currently and renewables accounting for almost half of the global electricity mix. Heat pumps and other electric heating systems are set to outsell fossil fuel boilers globally. The analysis says three times as much investment will go into new offshore wind projects as new coal- and gas-fired power plants.