The Arctic is warming at an accelerating pace.

Tests in university classes show that simple, low-cost systems can remove airborne particles with little disruption from fan noise.

If someone leaves the faucet running in your bathroom and the house floods, it’s easy to assign responsibility for the damage.

Eruptions are a regular occurrence at Anak Krakatau, a small volcano between the Indonesian islands of Java and Sumatra. 

Wildfire-related PM2.5 linked to higher hospitalization risks for cardiovascular and respiratory disease and poorer survival among people with lung cancer.

The world needs more homes. The world also has too much plastic. Perhaps the only thing those two problems have in common is that they’re hard to solve.

Irrigating U.S. crops prevents higher greenhouse gas emissions by avoiding land conversion, groundbreaking new research by Colorado State University shows.

For ecosystems, a forest fire does not end where the flames stop. 

Specialized microbes transform inedible material into protein-rich snacks.

Surface cleaners remove germs and grime, but their fragrances react with indoor ozone to form nanoparticles at levels rivaling that of city traffic.