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"There's a lack of policy regarding the environmental impacts of these megaconstellations," Dr. Connor Barker, a research fellow in atmospheric chemistry and physical geography at University College London, told Salon in a video interview.

Scientists at Imperial College London told the BBC plant workers continually exposed to the atmospheric pollutants produced by pyrolysis, were at risk of respiratory, cardiovascular and neurological diseases and certain types of cancer.

The series of atmospheric rivers that hit the region this week delivered a considerable dose of moisture, which is still struggling to catch up following a drier-than-normal start to winter.

Southern California is about to get drenched by new storms this week, with a powerful atmospheric river expected to arrive early Wednesday.

Then a powerful atmospheric river is expected to arrive early Wednesday, bringing heavy rain along the coast through Thursday, with significant impacts to the mountains as it moves east through the week.