It’s time to get biofuels out of your gas tank

Wasted resources: A worker prepares a railroad grain hopper car carrying corn at a transloading facility in Edinburgh, Indiana. Roughly two-fifths of America’s corn and soybean crops now end up burned in engines. — Bloomberg

THE global trade in the cheapest foods is grinding to a halt.

In April, Indonesia temporarily banned exports of palm oil, cutting off India from one of its biggest sources of imported nutrition.