Climate
- Climate
Ocean acidification may hamper food web’s nitrogen-fixing heroes
A new look at marine Trichodesmium microbes suggests trouble for nitrogen fixation in an acidifying ocean.
- Climate
Plot twist in methane mystery blames chemistry, not emissions, for recent rise
The recent rise in atmospheric methane concentrations may have been caused by changes in atmospheric chemistry, not increased emissions from human activities, two new studies suggest.
- Earth
‘River piracy’ on a high glacier lets one waterway rob another
The melting of one of Canada’s largest glaciers has rerouted meltwater from one stream into another in an instance of river piracy.
- Climate
The Great Barrier Reef is experiencing a major coral bleaching event right now
A second coral bleaching event has struck the Great Barrier Reef in 12 months, new observations reveal, raising concerns about the natural wonder’s future.
- Earth
Whirlwinds of crystals called gravel devils spotted in Andes Mountains
Large whirlwinds in northern Chile can carry gravel-sized gypsum crystals several kilometers before dumping them in mounds.
- Oceans
Thinning ice creates undersea Arctic greenhouses
Arctic sea ice thinned by climate change increasingly produces conditions favorable for phytoplankton blooms in the waters below, new research suggests.
- Climate
Arctic sea ice hits record wintertime low
Warm temperatures and heat waves reduced sea ice extent in the Arctic to its smallest maximum extent ever seen.
- Climate
Changing climate could worsen foods’ nutrition
Climate change could aggravate hidden hunger by sapping micronutrients from soils and plants, reducing nutrition in wheat, rice and other crops.
- Earth
Warming soils may belch much more carbon
New measurements suggest soils below 15 centimeters deep could play a sizable role in boosting carbon emissions as the planet warms.
- Ecosystems
Invasive species, climate change threaten Great Lakes
In The Death and Life of the Great Lakes, a journalist chronicles the lakes’ downward spiral and slow revival.
- Climate
Antarctic sea ice shrinks to record low
The Antarctic sea ice extent has reached a new low just two years after hitting a record high.
- Climate
Desert songbirds increasingly at risk of dehydration
With no efforts to curb climate warming, hot spots in the U.S. Southwest could turn uninhabitable for some songbirds.
