President Donald Trump has repeatedly questioned the economics of wind energy, saying that wind “doesn’t work” without subsidies. Experts have differing assessments of that. By some metrics, wind power is already competitive with fossil fuels without subsidies. But other measures don’t come to the same conclusion.
Two federal agencies this month took steps that would allow the oil and gas industry to release more methane, a greenhouse gas, into the environment. Critics warned that methane is more potent than carbon dioxide at trapping the Earth’s heat, but some gave wildly divergent figures to describe how much more potent.