Mountains are the “most convincing” hotspots of climate change, he told CNN. When he’s focused on the science, he keeps his emotions at arm’s length.

Environment Two hidden mountains 100 times taller than Everest discovered by scientists — but you won’t be able to visit them By Ben Cost Published Jan. 23, 2025, 1:19 p.m. ET ...

So he went home and learned how to climb. Mr. Lyman’s climbing odyssey forms the core of Michael Wejchert’s “Hidden Mountains: Survival and Reckoning After a Climb Gone Wrong.” ...