Earth
- Earth
Grand Canyon could be much older than thought
Disputed dating of rock erosion pegs the ancient chasm as 70 million years old.
- Earth
Shrinking polar ice caused one-fifth of sea level rise
Comprehensive analysis quantifies ice sheet loss in Greenland and Antarctica.
- Life
Trees worldwide a sip away from dehydration
Plumbing systems operate on a razor’s edge, making even moist forests highly vulnerable to drought.
- Earth
Mexican silver made it into English coins
Chemical tests of currency help reveal where New World riches flowed.
- Earth
Gulf spill harmed small fish, studies indicate
Effects vary but dire impacts seen with some very low exposures.
- Earth
Global drought may have changed less than thought
Simple models have overestimated drying over past 60 years.
- Earth
Pandas’ home range may move as climate changes
Warming might force animals’ food source, bamboo, to higher elevations.
- Life
Seaweed-threatened corals send chemical SOS to fish
The cry for help summons allies to graze away the algal overgrowth.
- Earth
Sea level rise overflowing estimates
Future sea level rise might exceed estimates due to environmental feedbacks.
- Earth
New pathway proposed for ancient flood
Meltwaters off the northwestern part of Canada’s ice sheet would have shut down the ocean’s heat circulation 13,000 years ago.
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- Climate
Extremely Bad Weather
Teasing out global warming's role in worsening hurricanes, droughts and other extreme events.
