But Steyer, a frequent advocate of raising the cost of energy in the United States, surely sees how the unrest in France and elsewhere threatens the political viability of his agenda, which boils down to engaging in regular takedowns of natural gas and strong pushes for us to “invest in”—by which he means direct even more government spending toward—wind and solar power.

Never mind that that the natural-gas boom, by displacing reliance on dirtier coal, is part of the reason why the United States is a consistent leader in year-to-year reductions in carbon emissions. And the growth of liquefied natural gas as a U.S. export is poised to help more of the world do the same.

Others have even bigger dreams. An old hobbyhorse of the left, the so-called Green New Deal, is also getting renewed attention. As with many of the terrible ideas floating around Washington, D.C., these days, this one has found a champion in the recently elected socialist representative from New York, Alexandria Ocasio-Cortez. Like the original New Deal under President Roosevelt, it promises massive new government spending and across-the-board government interventions.