Lake Superior, the largest lake in the world, has had a remarkable history, including resource extraction and industrial exploitation that caused nearly irreversible degradation. But in the past fifty years it has experienced a remarkable recovery an...

In 1941 the Food and Drug Administration approved the use of diethylstilbestrol (DES), the first synthetic chemical to be marketed as an estrogen and one of the first to be identified as a hormone disruptor – a chemical that mimics hormones. Although...