Killer whales off Canada’s Atlantic coast continue to be contaminated with dangerously high levels of toxic chemicals that put them at elevated risk of severe immune-system and reproductive problems, a recent McGill-led study has found.

Scientists have spotted microplastics, tiny pieces of plastic smaller than 5 millimeters, in some of the most pristine environments on Earth, from the depths of the Mariana Trench to the snow on Mt. Everest to the mountaintop clouds of China and Japan.

A University of Illinois Urbana-Champaign study is the first to describe an electrochemical strategy to capture, concentrate and destroy mixtures of diverse chemicals known as PFAS — including the increasingly prevalent ultra-short-chain PFAS — from water in a single process.

The 2023 blaze in Lahaina, Hawaii, which claimed more than 100 lives and burned 6,500 acres of land across Maui, is a tragic example of how rapid wildfire spread can make effective response efforts impossible, resulting in the loss of life and property.

The Biden administration’s recently announced plan to replace all lead pipes in the U.S. is a reminder that the toxic metal remains a threat, even in a country that has largely banned its use.

Bio-based materials may pose a greater health risk to some of the planet’s most important species than the conventional plastics they are designed to replace, a new study has shown.

Researchers at the University of Virginia School of Engineering and Applied Science developed an AI-powered system that mimics the human sense of smell to detect and track toxic gases in real time. 

Using a sophisticated new modeling approach, researchers at the University of Massachusetts Amherst have estimated carbon dioxide emissions from inland waters to 22 million U.S. lakes, rivers and reservoirs. 

Microplastics have been steadily increasing in freshwater environments for decades and are directly tied to rising global plastic production since the 1950s, according to a new study by an interdisciplinary team of Penn State researchers. 

A USC study finds boys and girls living closest to the landlocked lake experience more respiratory issues than those farther away.