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 ...

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 ...