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Humans drive sixth extinction risk, Britain study finds
A large British survey with over 20,000 volunteers links sharp declines in birds butterflies and native plants to human impact. Butterfly populations dropped 71 percent since 1970 82 surveys show bird declines around 54 percent 40 years of plant losses ~28 percent. Scientists warn ongoing declines signal a sixth global extinction.
MENTIONED IN THIS ARTICLE
Washington
Britain
England
Scotland
Wales
Jeremy A. Thomas
National Environment Research Council
Dorchester
Science
Thomas