Environment
- Earth
How thunderstorms can spawn damaging ‘downbursts’
Powerful winds called downbursts are not the same as a tornado, but the damage they cause can be similar — and can hit with little warning.
- Chemistry
Chemists turned plastic waste into tiny bars of soap
Researchers developed a process to turn plastic waste into surfactants, the key ingredients in dozens of products, including soap.
- Climate
Emperor penguins lost thousands of chicks to melting ice last year
In 2022, groups of emperor penguins in western Antarctica lost almost all their chicks to receding sea ice, signaling the threat of climate change.
- Climate
Some leaves in tropical forests may be getting too hot for photosynthesis
Climate change may be forcing some tropical leaves to stop photosynthesis and die. It’s still unclear what effect this will have on entire forests.
- Chemistry
Magnetic ‘rusty’ nanoparticles pull estrogen out of water
Iron oxide particles adorned with “sticky” molecules trap estrogen in water, possibly limiting the hormone’s harmful effects on aquatic life.
- Environment
The most intense sunlight on Earth can be found in the Atacama Desert
On the Chilean Altiplano plateau, every square meter of the ground receives, on average, more solar power than Mount Everest and occasionally almost as much as Venus.
- Animals
In a ‘perfect comeback,’ some birds use antibird spikes to build their nests
The spikes were meant to keep birds away. But five corvid nests in Europe use the bird-deterrents as structural support and to ward off predators.
- Climate
Canada’s Crawford Lake could mark the beginning of the Anthropocene
The mud of a Canadian lake holds an extremely precise record of humans’ influence on Earth. But the Anthropocene isn’t an official geologic epoch yet.
- Ecosystems
This seagrass is taking over the Chesapeake Bay. That’s good and bad news
Higher water temperatures are wiping out eelgrass in the Chesapeake Bay and weedy widgeongrass is expanding. Here’s why that seagrass change matters.
- Chemistry
Tear-resistant rubbery materials could pave the way for tougher tires
Adding easy-to-break molecular connectors surprisingly makes materials harder to tear and could one day reduce microplastic pollution from car tires.
- 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.
- 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.
