Nature World News: Asia's air pollution has become so bad researchers warn that it is affecting global air circulation in such a way that it could be intensifying storms - including those far beyond the continent itself. "Huge amounts of aerosols from Asia go as high as six miles up in the atmosphere and these have an unmistakable impact on cloud formations and weather," said Renyi Zhang, a professor of atmospheric sciences at Texas A&M University. The discovery, published in Nature Communications, uses both climate...