HFCs keep refrigerators cool, but when these short-lived climate pollutants leak, they warm the planet. The US EPA has a plan to phase them out, but what will replace them?
Small, practical messaging campaigns on pesticide toxicity can lead farmers to choose safer, less-toxic pesticides.
PFAS chemicals are toxic, widespread and persistent in the environment, and the federal government has been slow to regulate them. A scientist explains why evaluating them one by one isn't working.
Researchers have just discovered a new species of bacteria that cranks out a deadly toxin. In a common arrangement in the marine environment, a slug and alga both use this toxin for their own defense.