Earth
- Oceans
Deep-sea dump: Trash is collecting on the Arctic seafloor
Trash is building up on the bottom of the Arctic Ocean, including plastic bags, glass shards and fishing nets.
- Environment
Cleaning up water that bees like to drink
Plant roots suck up pesticides used on soils, then release them into water that can seep from their leaves. This is a sweetened water that bees love to sip. A teen figured out how to remove most of the pesticide with bits of charcoal.
- Agriculture
Teen converts water pollutant into a plant fertilizer
Too much phosphate can fuel algal growth, which can rob oxygen from the water. This can suffocate fish and other wildlife. Stefan Wan found a way to collect that pollutant, which can later be used as a farm nutrient.
- Earth
Is Zealandia a continent?
Geologists are making the case for a new continent, that they would dub Zealandia. It can be found largely submerged beneath the southwestern Pacific Ocean.
- Animals
Wild hamsters raised on corn eat their young alive
European hamsters raised in the lab turn into crazy cannibals when fed a diet rich in corn, new data show. The problem may trace to a shortage of a key vitamin.
- Ecosystems
Underwater meadows appear to fight ocean germs
The seagrasses that sway in coastal currents are more than aquatic groundcover. They can reduce harmful bacteria that might otherwise sicken neighboring animals, new data show.
- Climate
Sea ice around Antarctica shrinks to record low
Just two years after reaching a record high, the Antarctic sea ice extent has reached a new low.
- Environment
Cleaner water helps male fish again look and act like guys
Water pollution can give male fish female traits — such as the ability to make eggs. And that’s not a good thing. Better water treatment may prevent that, data now show.
- Oceans
Deep-sea mining could imperil rare, ghostlike octopus
A newly discovered octopus lays its eggs in a dangerous spot: where companies are looking to mine valuable metals for use in cell phones and computers.
- Fossils
What killed the dinosaurs?
New evidence is emerging that a devastating combo of events — an asteroid impact and supervolcanoes — may be behind the dinosaurs’ demise.
- Earth
Drilling into a dinosaur killer
An asteroid that hit the Earth 66 million years ago killed off the dinosaurs. Now scientists are drilling into the giant crater left behind.
- Oceans
Climate change could stall Atlantic ocean current
Rising carbon dioxide concentrations in Earth’s atmosphere could disrupt the Atlantic Ocean current after all, a new analysis finds.
