HONG KONG—Coal supply shortages are pushing prices for the fuel to record highs and laying bare the challenges to weaning the global economy off one of its most important—and polluting—energy sources.
The crunch has many causes—from the post-pandemic boom to supply-chain strains and ambitious targets for reducing carbon emissions. And it is expected to last at least through the winter, raising fears in many countries of fuel shortfalls in the months ahead.
