ScienceDaily: The properties of clouds can be a key to predicting coming climate changes. This is shown by research at the University of Gothenburg in Sweden – which has also studied urban pollution. The earth’s climate field is regulated by the balance between incoming solar radiation and outbound heat radiation. The aerosol content of the atmosphere, that is, the proportion of particles in the air, functions as a regulator: cooling off by reflecting incoming light, warming up by absorbing the …