DR MORLEY READ / SCIENCE PHOTO LIBRARY DR MORLEY READ / SCIENCE PHOTO LIBRARY
Oil spill in the Amazon. Oil slick on pebbles beside a river in the Amazon rainforest. Oil is toxic to plants and animals, both in the river and on land, and can cause ecological devastation when spilt in large quantities. It can also take a long time to fully degrade and be removed from the environment. Photographed in Ecuador, in July 2009.
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