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Global dimming

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Global Dimming

Pollution over east China

This true-color image over eastern China was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS), flying aboard NASA’s Aqua satellite, on Oct. 16, 2002 [1]. The scene reveals dozens of fires burning on the surface (red dots) and a thick pall of smoke and haze (greyish pixels) filling the skies overhead. Notice in the high-resolution version of this image how the smog fills the valleys and courses around the contours of the terrain in China’s hilly and mountainous regions. The terrain higher in elevation is less obscured by the smog than the lower lying plains and valleys in the surrounding countryside. This scene spans roughly from Beijing (near top center) to the Yangtze River, the mouth of which can be seen toward the bottom right. Toward the upper right corner, the Bo Hai Bay is rather obscured by the plume of pollution blowing eastward toward Korea and the Pacific Ocean. Toward the bottom right, the Yangtze River is depositing its brownish, sediment-laden waters into the Yellow Sea.

Global dimming as a result of the atmospheric brown clouds (ABCs) of black carbon and other particulates that circle the globe (aka aerosols) is having a profound effect on climate change, global warming, plants, migrational patterns, and food production worldwide. In many parts of the world the primary source of the brown clouds is cooking fires. Lots of people talk about global warming, but global dimming is a very serious problem that is not getting the attention it should. Educate yourself on the subject of global dimming so that you can become part of the solution and help to educate others. Unlike CO2, the brown clouds would clear quickly if we stopped sending smoke up in the first place. Solar cooking technology can do more than any other single area of technology to cut back on global dimming.

Audio and video

Stop Soot, Black Carbon, and Global Warming - Earthjustice02:14

Stop Soot, Black Carbon, and Global Warming - Earthjustice

Air pollution from Asia reaches US shores00:19

Air pollution from Asia reaches US shores

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