Plastic pollution is not just in oceans and soil. Scientists have now found enormous amounts of microscopic plastic floating ...

Clouds form when water vapor — an invisible gas in the atmosphere — sticks to tiny floating particles, such as dust, and turns into liquid water droplets or ice crystals. In a newly published study, ...

THIS ARTICLE IS republished from The Conversation under a Creative Commons license. Clouds form when water vapor—an invisible gas in the atmosphere—sticks to tiny floating particles, such as dust, and ...

When a sunbeam hits just right, you see them: tiny particles of dust suspended in the air. They look innocuous—until you stop to think about their tendency to collect on surfaces throughout your house ...

Dust, made of particles like skin cells and dander, often seems to be never-ending. But there's an easy way to reduce the amount that circulates indoors.

Rasoul Ali Ashrafipour, the director of the Tehran Provincial Directorate of Environment Protection, said on Tuesday that the air pollution had reached an "alarming" level, warning about an imminent ...