In a recent study, scientists at Leipzig University have revised previous assumptions about the influence of pollutant particles, known as aerosols, on global warming. Using satellite data, Dr Hailing Jia and Professor Johannes Quaas have shown that the relationship between water droplets in clouds and aerosol concentration is more non-linear than previously thought. Specifically, in heavily polluted regions, the additional warming of the Earth resulting from better air quality could occur much later than originally believed – perhaps as much as 20 or 30 years later than expected. The Leipzig study was recently published in the prestigious journal “Nature Climate Change”.
Concentrations of aerosols have fallen significantly since 2000. This is good news because aerosols are harmful to humans and the environment. At the same time, the cooling effect of these particles on the climate has also decreased: aerosols, in the form of pollutant particles such as fine dust or sulphuric acid, cool our climate by reflecting sunlight and increasing the reflectivity of clouds.
Read more at: Universitat Leipzig
Professor Johannes Quaas (Photo Credit: Antje Gildemeister/Leipzig University)