In addressing the recent oil slick in the Gulf of Mexico, the US government has swung into action, mobilising the military and high-level officials for months on end. But roughly 350 miles east, the slow-motion environmental disaster above Houston continues unabated. Because air pollution is not only invisible, but its impact on health and the environment is not immediate, it provokes little outrage; there are no images of oil-soaked birds or devastated fishermen to provoke media ire and political action. Read more
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