The real extinction problem, he says, is human population pressure: habitat destruction, pesticide abuse, overharvesting, and species invasion.

他说，真正的灭绝问题是人类的人口压力：居住地的破坏、滥用杀虫剂、过度捕杀、物种入侵等。

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Physicians came up with all sorts of theories, blaming Alzheimer's on factors as varied as aluminum in the water supply and a lack of key brain nutrients and attributing Parkinson's disease to pesticide exposure or drug abuse.

FORBES: Health

Doctors came up with all sorts of theories, blaming Alzheimer's on factors as varied as aluminum in the water supply and a lack of key brain nutrients, and attributing Parkinson's disease to pesticide exposure or drug abuse.

FORBES: Magazine Article