The team found unique plumes of ice clouds near 67 metal and cement factories, paper mills and power plants in North America, Europe and Asia.

Anthropogenic aerosols, tiny solid and liquid air pollution particles, have masked a fraction of global warming caused by anthropogenic greenhouse gases. Climate researchers have known for decades that anthropogenic aerosols perturb liquid clouds by enabling the formation of a larger number of cloud droplets,

By Stephen Beech via SWNS Factories can trigger snow nearby - by "freezing" clouds, reveals new research. Using satellite observations, climate researchers discovered "unique" plumes of ice clouds and reduced cloud cover downwind of coal-fired power plants and factories in Europe,