Beijing authorities have declared a five-day pollution “red alert”, shutting schools, ordering thousands of vehicles off the roads and telling residents to stay indoors, after the Chinese capital was enveloped by a shroud of toxic smog that is expected to ...

Paris is said to be suffering its worst winter pollution for at least a decade, with the French capital clouded by thick smog and gripped by travel chaos, according to Sky News. Airparif agency, which measures pollution in the city, ...