Earth and Human Activity
- Climate
New UN climate report finds no time for denial or delay
It links extreme weather around the globe to Earth’s changing climate.
- Earth
Let’s learn about Antarctica
This continent is dry, windy and very cold — and home to penguins, ice and a lot of scientific research.
- Climate
‘Zombie’ wildfires can reemerge after wintering underground
Climate change may make these not-quite-dead blazes more common. Scientists are learning to predict where a zombie might emerge.
- Climate
U.S. records reveal the last 30 years were the hottest on record
New ‘climate normals’ show that average temperatures increased notably just since 1990.
- Climate
‘Tree farts’ make up about a fifth of greenhouse gases from ghost forests
Heat-trapping gases from dead trees play an important role in the environmental impact of “ghost” forests.
- Animals
Common parasite may help mussels survive heat waves
By whitening shells, the organism helps the shellfish stay cool on sunny days, a new study suggests.
- Materials Science
‘Smart’ pasta morphs into fun shapes as it cooks
The trick to this shape-shifting are grooves cut into the raw pasta. Those grooves affect how the noodles swell as they cook.
- Environment
Pond scum can release a paralyzing pollutant into the air
New study finds blooms of blue-green algae can seed the air with a poisonous pollutant.
- Environment
Warning: Wildfires might make you itch
Western wildfires are on the rise due to climate change and land use. Now a study adds eczema to the list of health risks that smoke might trigger.
- Climate
Climate may have sent drift of the North Pole toward Greenland
This mid-1990s shift in the pole’s movement was driven by glacial melt. And that was triggered in part by climate change, a new study reports.
- Animals
Only 3 percent of Earth’s land is unchanged by people
A sweeping survey of land-based ecosystems finds that very few still support all the animals they used to. Reintroducing lost species could help.
- Agriculture
New technologies might help keep drought-prone farms green
After learning how much damage drought can do to crops, two teens designed ways to detect a thirsty plant and make sure it gets enough water.
