EnvironmentAttack on Iran’s oil released as much pollution as a volcano Airstrikes on Tehran earlier this year emitted a plume containing almost 30,000 tonnes of sulphur dioxide that reached Asian countries ¿ìè¶ÌÊÓÆµ
EarthHow worried should we be about noxious chemicals from dead satellites? We have more satellites than ever before, but when they burn up they create a new kind of air pollution. Evidence is now revealing what effects this could have and how to tackle it Features