In the current environment website you can read about that light rainfall has fallen by almost a quarter in the last 50 years in eastern China. Researchers from Sweden and other countries and may make changes to air pollution!
The risks it carries, including drought and lower yields. The number of rainy days per year has declined by 23 percent in 50 years in some areas in eastern China. In particular, the light rainfall, less than 10 millimeters, declined. Across the country, emissions to the atmosphere have increased by 800 percent over the past century. Now a team of climate scientists from the U.S., China and University of Gothenburg been able to demonstrate a link between the decline in rain and air pollution.
According to the researchers, it depends on the amount of aerosols in the atmosphere. Aerosols composed of small particles with gas and water around them, which can bind raindrops in the clouds and in the new study, researchers have discovered that raindrops were much less where the aerosol was high. In some cases they were only half as large as normal.
Small raindrops are more difficult to shape itself to the clouds, which can release the rain and this is the reason for the reduction of light rain in China.
