Earth
- Climate
Warming culprit CO2 has a cool side — and it’s in Antarctica
Rising CO2 levels above central Antarctica cause cooling, not warming, new research suggests. The odd effect results from surface temperatures that are colder than the overlying stratosphere.
- Earth
Humankind’s water use greater than thought
Humans’ global water footprint increases when accounting for water losses from water management practices.
- Earth
Pioneering geologist sought to demystify volcanic eruptions
In The Last Volcano, a geologist profiles Thomas Jaggar, one of the 20th century’s most influential volcanologists.
- Earth
Don’t flip out: Earth’s magnetic poles aren’t about to switch
Earth’s waning magnetic field is returning to its long-term average, not heading toward a catastrophic magnetic reversal, new lava analysis suggests.
- Climate
Thinning ice leads to winter warming in the Arctic
Thinning Arctic sea ice could boost heat-trapping water vapor in the air during autumn and winter, leading to more ice loss.
- Animals
Getting creative to cut methane from cows
Changing feed, giving vaccines and selective breeding may enable scientists to help beef and dairy cattle shake their title as one of society's worst methane producers.
- Life
Truffles aren’t laced with radioactive cesium
Fallout from the Chernobyl disaster hasn’t made truffles dangerously radioactive, scientists find.
- Plants
Genetic battle of the sexes plays out in cukes and melons
Genetics reveals new approach to preventing inbred seeds and encouraging more fruitful crops.
- Climate
Geoengineering is world’s last hope, new book argues
Geoengineering is humankind’s only viable solution to curb climate change impacts, a journalist contends in The Planet Remade.
- Life
‘Racing Extinction’ documents plight of endangered species
The new documentary "Racing Extinction" offers hope that people can halt the sixth mass extinction.
- Earth
Earth’s water originated close to home, lava analysis suggests
Scarcity of a hydrogen isotope called deuterium in molten rock from Earth’s depths suggests that the planet’s H2O originated from water-logged dust during formation, not comets.
- Paleontology
Land life spared in Permian extinction, geologists argue
New rock layer dating in South Africa’s Karoo Basin suggests that extinctions of land species didn’t coincide with the Permian extinction around 252 million years ago.
