InsideClimate: China is erecting huge industrial complexes in remote areas to convert coal to synthetic fuel that could make the air in its megacities cleaner. But the complexes use so much energy that the carbon footprint of the fuel is almost double that of conventional coal and oil, spelling disaster for earth's climate, a growing chorus of scientists is warning. Efforts by China to develop so-called "coal bases" in its far-flung regions have received scant attention beyond the trade press, but scientists watching...