Group of Seven environment and energy ministers vowed to accelerate the phase-out of natural gas and other fossil fuels to achieve net zero greenhouse gas emissions by 2050 but failed to set a clear deadline for ending coal power use after their two-day talks that ended Sunday.Japan, which presided over the meeting in the northern city of Sapporo, has been reluctant to agree to a specific time frame for ending the resource-poor country's use of coal given its likely need to rely on the energy source for at least most of the 2030s, despite a push by Britain and Canada to end the practice.Jap…READ FULL ARTICLE