When winter smog takes over Asian mega-cities, more particulate matter is measured in the streets than expected. 

On March 19, California was one of the first states to set mandatory stay-at-home restrictions in an attempt to slow the spread of COVID-19.

No human being on this earth comes through life without breathing, drinking water and consuming salt. For the vast majority of us, this also means involuntary ingestion of microplastics.

Carnegie Mellon University researchers working with an international team of scientists have discovered a previously unknown mechanism that allows atmospheric particles to very rapidly form under certain conditions.

Researchers at U of T Engineering and Carnegie Mellon University are using artificial intelligence (AI) to accelerate progress in transforming waste carbon into a commercially valuable product with record efficiency.

University of Guelph-developed DNA metabarcoding technology has been found to be more effective at monitoring biodiversity of ecosystems than traditional methods. 

NOAA scientists and colleagues have created an image of the change in nighttime illumination over metropolitan New York City and surrounding regions since the COVID-19 slowdown.

Levels of two major air pollutants have been drastically reduced since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant – ground-level ozone – has increased in China, according to new research.

The Monte Conca cave system on the island of Sicily is a vast system of springs and pools, sitting below a nature preserve.

Prescribed burns are an effective method for managing forests and controlling wildfires. But burning such a large amount of built-up fuel can significantly impact regional air quality.