Newsletter Scientists descended into Greenland’s perilous ice caverns — and came back with a worrying message Vertical ice caverns in Greenland, called "moulins," are even bigger than scientists thought.
Politics www.nytimes.com Konrad Steffen was a prophet of climate change, and its victim The very ice melt he warned would threaten the planet turned out to be his undoing. Remembering those we lost in 2020.
Trump moves to end federal studies on rocket and satellite pollution, raising concerns over Musk’s influence
