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environmental time line

Created by essey ephrem

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Events

the clean air act is passed in the united states world population reaches 4 billion mt st. helens erupts in washington state bophal disaster world population reaches 5 billion the Montreal treaty was created the Kyoto protocol was signed world population reaches 6 billion the industrial revolution the volcano Laki erupts in ice land world population reaches one billion World population reaches 2 billion world population reaches 3 billion

Periods

mt. Tambora erupts in Indonesia world war 1 world war 2

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