China's booming economy during the last 30 years has led to the building of enormous manufacturing factories, industrial plants, power plants, and other facilities that produce huge amounts of air pollutants. Once emitted into the atmosphere, pollutant particles affect cloud formations and weather systems worldwide, a new study shows. The findings, published in the journal Nature Communications , are based on analysis of climate models and data collected about aerosols and meteorology over the past 30 years. Most likely, pollution from Asia can have important consequences on the weather pattern here over North America. Once emitted into the atmosphere, pollutant particles affect cloud formations and weather systems worldwide, the study shows. Increases in coal burning and car emissions are major sources of pollution in China and other Asian countries.
Pollution in China May Alter Weather in United States, Research Shows
"Tug-of-War" between Air Pollution and CO2 Masks Warming's Impacts - Scientific American
Each summer, the onset of the wet season brings much-needed rain to millions of people across the continent. But scientists have noticed a puzzling trend in recent decades. Some of the monsoons, including the annual rains in India and parts of China, seem to be weakening over time, raising concerns about the long-term effects on water supplies and agriculture. On a basic level, the monsoons are caused by a difference in temperature between the air over the Asian continent versus the surrounding oceans. This gradient changes with the seasons, and allows for an influx of warm, moist air to blow across the land during the hotter summer months. That brings stormy weather.
China’s polluted air is changing the weather
Air pollution is one of the grand environmental challenges in developing countries, especially those with high population density like China. High concentrations of primary and secondary trace gases and particulate matter PM are frequently observed in the industrialized and urbanized regions, causing negative effects on the health of humans, plants, and the ecosystem. Meteorological conditions are among the most important factors influencing day-to-day air quality. Synoptic weather and boundary layer dynamics control the dispersion capacity and transport of air pollutants, while the main meteorological parameters, such as air temperature, radiation, and relative humidity, influence the chemical transformation of secondary air pollutants at the same time. Intense air pollution, especially high concentration of radiatively important aerosols, can substantially influence meteorological parameters, boundary layer dynamics, synoptic weather, and even regional climate through their strong radiative effects.