01/09/2012 10:53 am ET

As Fukushima Cleanup Begins, Long-Term Impacts Are Weighed

Following the nuclear disaster at Chernobyl 25 years ago, the Soviet government chose long-term evacuation over extensive decontamination; as a result, the plants and animals near Chernobyl inhabit an environment that is both largely devoid of humans and severely contaminated by radioactive fallout.

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