ENVIRONMENT

A study with 1200 sensors mounted to inhalers can help the city reshape its air quality policies.

No one is sure if any will erupt. If they do, the consequences could be troubling.

Scientists say butt-studded asphalt could be the wave of the future.

The company plans to cut waste in its cafes in half by 2020.

Crawling into a toilet with a full tank below it might have seemed like a good idea at the time.

It gets much, much worse than Phoenix.

The Guardian is designed to capture the hordes of lionfish devastating reefs and fish populations in the Atlantic Ocean.

Deadly dust storms could return to the Great Plains by the end of the century.

Those oysters on the half shell you're slurping down could have a second life cleaning waterways and protecting coastal ecosystems.

Sustainable energy can sometimes also be adorable.

Reforestation promises to bring back old-growth trees...very slowly.

It's a one-of-a-kind Ice Age relic.