We summarize the week's scientific breakthroughs every Thursday.
The Day After Tomorrow, Snowpiercer, Snowball Earth: Such end-of-days visions of a frozen Earth are fantastical … but can contain a snowflake of truth.
Satellite data show that U.S. cities have more nighttime cloud cover than nearby countryside, and building height and density help explain why.
Heat and humidity now severely limit light physical activity for millions of people around the world, with older adults facing the greatest burden.
People quickly normalize extreme weather. Simple visuals highlighting abrupt change could help climate change break through our mental blind spots.
Ultraviolet cameras captured faint electrical flashes from leaves and branches as storm charges built up in the atmosphere.
Alaska’s glacial lakes are growing as glaciers retreat out of basins. These lakes will change desolate glacial rivers into thriving salmon habitat.
A widely used method to calculate sea level rise may have missed up to a century of change, so the risks could hit home for millions sooner than thought.
Ice arenas and artificial snow now dominate the winter Olympics. Athletes there — and everywhere — may need to adjust how they train and perform.
Suitable milkweed habitat in Mexico may shift south, fracturing existing migration routes and possibly pushing some butterflies to stay put.
