Weather getting you down? Blame pollution from Asia. At least that's the suggestion of researchers at Texas A&M University. Renyi Zhang and colleagues have carried out the first study of its kind to obtain incontrovertible evidence from satellite imaging and computer models, that anthropogenic pollution from China and the Indian sub-continent are adversely affecting the storm track over the Pacific Ocean. Both China and India have seen enormous industrialization recently and a concomitant increase in soot and sulfate aerosol emissions into the atmosphere. This pollution is carried across the Pacific Ocean by prevailing winds and is leading to an increase in deep convective clouds, which Zhang says will adversely affect the world's weather.