Mr. Regan informed agency employees that he would leave before the formal end of the Biden term.

© Pete Kiehart for The New York Times

Every farm, even the scenic ones with red barns and rolling hills, is a kind of environmental crime scene, an echo of whatever wilderness it once replaced.

Even at my lowest, I have never entirely given up my faith that good people working together can change the world for the better.

Climate purity is a recipe for failure.