human activities

One of the paper’s co-authors, Robert Baker from the Texas Tech University, said that the benefits for wildlife from the lack of human activity outweighed the risks of low-level radiation.

Writing on his university web page, Professor Baker said: “The elimination of human activities such as farming, ranching, hunting and logging are the greatest benefits.

http://news.bbc.co.uk/2/hi/science/nature/6946210.stm

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