Earth
- Ecosystems
Help scientists find floating forests of kelp
By looking for signs of kelp in satellite images, citizen scientists can help researchers keep track of the world’s seaweed forests.
- Environment
Human ingenuity takes on Mother Nature in ‘The Big Ratchet’
Geographer Ruth DeFries explains how technological innovations have allowed humans to overcome environmental challenges throughout history.
- Animals
Lacking ice, huge walrus herd congregates on Alaska shore
A large group of walruses has hauled out on the beach near Point Lay, Alaska. The animals have been forced onto shore due to a lack of sea ice in the region.
- Oceans
Satellites expose mysteries of the deep ocean
New detailed map of Earth’s seafloor reveals never-before-seen formations.
- Animals
Crabs guard coral from army of sea stars
Coral guard-crabs proved their worth during a 2008 outbreak of crown-of-thorns sea stars, with many successfully protecting their coral from being eaten.
- Climate
Missing winds probably foiled 2014’s chance for El Niño
Lack of antitrade winds probably hampered 2014 El Niño.
- Climate
19th century chronicles offer clues to mystery volcano
Meteorological records narrow down the time and place of a massive volcanic eruption that helped trigger a decade of extreme cold.
- Earth
Supervolcano blast would blanket U.S. in ash
A new simulation illustrates the explosiveness of the volcano that lurks beneath Yellowstone National Park in Wyoming.
- Environment
Crops take up drugs from recycled water
Plants irrigated with recycled wastewater can soak up tiny amounts of pharmaceutical compounds but what this means for human health is unclear.
- Plants
Borrowed genes raise hopes for fixing “slow and confused” plant enzyme
Inserting some bacterial Rubisco chemistry into a plant might one day boost photosynthesis and help raise crop yields.
- Earth
Shrinking ancient sea may have spawned Sahara Desert
The Saharan Desert probably formed 7 million years ago as the ancient Tethys Sea, the forerunner of the Mediterranean Sea, shrank.
- Agriculture
Drug-resistant staph can cling to farm workers for days
Agricultural exposure to staph bacteria could threaten the health of laborers and people who live near farms, a study of pig farm workers suggests.
