Warning signs from the Biden-Trump split screen

On Wednesday, President Joe Biden signed a suite of executive orders that transformed US climate-change policy. He mandated a pause on new oil and gas leases of federal land; instituted a major push to replace gas vehicles in the federal fleet with electric ones; directed agencies to eliminate fossil-fuel subsidies; set climate as a central pillar of foreign and security policy; and established ambitious national goals for emissions targets, land and sea conservation, and green jobs. That...