Why it matters: The month's warmth means that the meteorological winter of 2023-2024 — which includes December, January and February — will very likely be the Lower 48 states' warmest on record.
A "potentially life-threatening," blizzard is slamming the Sierra Nevada with up to 12 feet of snow — making mountain travel "extremely dangerous to impossible" into the weekend, the National Weather Service warns.
The big picture: This "extremely potent" winter storm also threatens the higher terrain of Washington and Oregon, parts of the Great Basin and Rockies as well, per an NWS forecast discussion Friday.
Newly-released data shows a bifurcated world when it comes to energy transition and carbon emissions.
Why it matters: Climate-friendly technology is moving much more slowly in developing economies — often the same places emissions and energy demand are rising fast.
Biden officials face a complicated political landscape as they spare existing gas-fired power plants — at least for now — from looming electricity carbon emissions rules.
Why it matters: Power generation is the nation's second-largest source of CO2, but neither Obama-era regulations, nor a more modest Trump-era rule, survived court challenges.