The document discusses the economic costs of environmental degradation from pollution of air, water, and soil. It provides examples of specific pollution events, such as China's gray smog and the 2010 BP oil spill in the Gulf of Mexico, and their negative economic impacts including costs of cleanup, health effects, and damage to industries like fishing and tourism. Studies estimate that environmental costs are 4.5-8% of GDP for India and up to 8% for China due to issues like air and water pollution, land degradation, and deforestation.
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