Rachel Carson

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1. 01

   Chemicals used to kill harmful insects can travel up the food chain and silently kill birds and other innocent animals too.

   Silent Spring · 1962

   Pesticides bioaccumulate up the food chain, silently killing unintended animals.

   Carson described springs where birds no longer sang, because pesticides sprayed on fields built up in insects, then in the birds that ate them. The higher you go up the food chain, the more concentrated the poison becomes. Her book showed nature is far more connected than it first appears.

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