The influence of local man-made pollution on global climate Bashny.Net

American and Chinese scientists in the new project compared the levels of air pollution, 1850-2000 years and found that the Pacific storm large influence of anthropogenic particles, which arose as a result of Asian pollution. So, these storms have a direct influence on the formation of weather conditions most of the world. In the recent years from the constant storms affecting residents of North America.

The researchers, based on information from the intergovernmental panel on climate change regarding emissions, has proposed two scenarios, the first of which is designed for contamination level of 1850, and the second – 2000. A comparison of two global climate models has allowed scientists to detect the impact of anthropogenic aerosols on cloud formations and cyclones, which have a direct relationship to the Pacific storms.



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Next, the researchers worked on creating computer models for several types of aerosol pollution and investigated the impact they have on clouds, precipitation and global weather. So, they found that each aerosol has its own way of influence on the storm. For example, one aerosol can to block solar radiation, and the second is to attract the concentration of water vapor. As it turned out, the greatest environmental threat is sulfate aerosol, which provoke the accumulation of high concentration of moisture.

Last decades are characterized by rapid increase of aerosol emissions in Asia. In China, one of the world's largest consumers of coal, the level of air pollution in hundreds times exceeds the norms established by the who. As for North America and Europe, in these parts has a favorable impact policy limited pollution, whereby the level of aerosol pollution falls.

Claims of Genyi Zhang, a member of the research team, the formation of a global air circulation takes place under the influence of the aerosols that result from industrial activities of Asian countries and into the atmosphere. Zhang also noted that during their research for the first time were taken into account such a global impact.

Scientists managed to establish that atmospheric aerosols absorb or scatter solar radiation and can alter the structure of clouds. Thus, they indirectly and directly affect climate. Subsequently, the growth of such particles can change and the global circulation of the atmosphere.

Source: zeleneet.com