Earth
We summarize the week's scientific breakthroughs every Thursday.
- Climate
Antarctic sea ice has been hitting record lows for most of this year
Since hitting a record low minimum back in February, the amount of Antarctic sea ice has stayed well below normal all year.
- Environment
Dust from a shrinking Great Salt Lake may be accelerating Utah’s snowmelt
About a quarter of the record-breaking, snow-melting dust on the Wasatch Mountains in 2022 may have come from exposed lakebed at Great Salt Lake.
- Climate
The snow forest of North America may be about to shrink
From 2000 to 2019, the boreal forest’s northern boundary didn’t move while southern tree cover thinned due to climate change, wildfires and logging.
- Earth
Irrigation may be shifting Earth’s rotational axis
Computer simulations suggest that from 1993 to 2010 irrigation alone could have nudged the North Pole by about 78 centimeters.
- Ecosystems
The Amazon might not have a ‘tipping point.’ But it’s still in trouble
Scientists race to foretell the fate of the vast forest facing deforestation and climate change.
- Climate
Why is the North Atlantic breaking heat records?
Record-breaking sea-surface temperatures off the coast of Africa may affect the 2023 hurricane season. What’s fueling the unusual heat is unclear.
- Animals
Camouflaging wheat with a wheat smell could be a new approach to pest control
Wheat fields coated in wheat germ oil confuse the noses of mice, reducing seed loss by more than 60 percent, a new study finds.
- Climate
Wildfire smoke is blanketing the U.S. East Coast. It won’t be the last time
Climate change will continue to exacerbate fire risk across the world’s boreal forests, making events like the dangerous smoke over the U.S. East Coast more common.
- Environment
Rising groundwater threatens to spread toxic pollution on U.S. coastlines
Sea level rise is pushing groundwater into shallower layers of earth, threatening to spread hazardous chemicals from contaminated soils.
- Environment
Surviving a drought may help forests weather future dry spells
Climate change is making droughts more intense and frequent, but conifer forests have a trick up their sleeve, airplane and satellite data show.
- Life
50 years ago, flesh-eating screwworms pushed scientists to mass produce flies
"Fly factories” dreamed up in the early 1970s have helped North and Central America keep screwworms in check for decades.
- Astronomy
The Parker Solar Probe may have spotted the origin of high-speed solar winds
Kinks in the magnetic fields near the surface of the sun appear to be the cause of fast-moving flows in the solar wind.
