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GIANT STEPS. Color-coded footprints indicate the dollar cost, in trillions, of environmental damage inflicted by high-, middle-, and low-income groups of nations on each of the other two groups. E. Roell, from Srinivasan graphic
Rich nations' doings during the last 4 decades of the 20th century caused up to $2.5 trillion in environmental impacts on poor countries,(...). Middle-income nations did about the same amount of damage to the low-income countries.
Each wallop is bigger than the total that poor countries have borrowed from wealthier nations. In 2000, that borrowing added up to $1.8 trillion.