Earth
- Health & Medicine
Stoplights are hot spots for airborne pollution
Drivers get a big chunk of their exposure to pollutants from short stops at traffic intersections.
- Oceans
Millions of tons of plastic end up in oceans each year
A new estimate quantifies how much plastic makes its way into the world’s oceans.
- Climate
Worst drought in a millennium predicted for central and southwest U.S.
Comparing reconstructions of past drought conditions with models of future dryness shows that the Central Plains and Southwest U.S. will become the driest in a millennium.
- Earth
Mineral hunting, mob math and more reader feedback
Readers ask about Earth's most abundant mineral and discuss the notoriously unpredictable behavior of pedestrians.
- Physics
Raindrops kick up soil chemicals
The champagne-like fizz produced when a raindrop hits the ground may be responsible for the earthy aroma after a rainstorm.
- Climate
Artificial fixes for climate change nixed — for now
Experts says schemes to manually adjust the world’s climate are not ready for use, but should be studied just in case.
- Health & Medicine
Fallout from nuclear bomb testing presaged today’s radioactive tracers
Scientists in 1965 measured buildup of radioactive carbon from nuclear bomb testing in people.
- Environment
Humans’ environmental rap sheet gets longer
Ice cores reveal human-caused air pollution 240 years before the Industrial Revolution.
- Environment
Funding canceled for clean coal plant
The Department of Energy has scrapped funding for FutureGen, a project to use new technology to sequester carbon dioxide emissions from a coal power plant.
- Environment
Funding canceled for clean coal plant
The Department of Energy has scrapped funding for FutureGen, a project to use new technology to sequester carbon dioxide emissions from a coal power plant.
- Ecosystems
Termite mound paradises help buffer dry land against climate change
Landscapes dotted by Africa’s great termite mounds look on the verge of turning into desert but are, in fact, more resilient.
- Earth
Ice ages boost production of new ocean crust
When sea levels drop during ice ages, magma at mid-ocean ridges surges.
