Sun-blocking aerosols around the world steadily declined (red line) since the 1991 eruption of Mount Pinatubo, according to satellite estimates. The decline appears to have brought an end to the "global dimming" earlier in the century.
來源
NASA
作者
Michael Mishchenko, NASA
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2007-03-21 14:52 Kgrr 500×207×8 (11269 bytes) http://www.nasa.gov/centers/goddard/news/topstory/2007/aerosol_dimming.html Public Domain - NASA, a US Government Agency Sun-blocking aerosols around the world steadily declined (red line) since the 1991 eruption of Mount Pinatubo, according to satellite
{{Information |Description=http://www.nasa.gov/centers/goddard/news/topstory/2007/aerosol_dimming.html Public Domain - NASA, a US Government Agency Sun-blocking aerosols around the world steadily declined (red line) since the 1991 eruption of Mount Pinat