PCB's, banned in the U.S. in 1979, continue to wreak havoc on the reproductive systems of whales. Here's how and why.https://www.popsci.com/pcb-pollution-killer-whales …
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PCB's, banned in the U.S. in 1979, continue to wreak havoc on the reproductive systems of whales. Here's how and why.https://www.popsci.com/pcb-pollution-killer-whales …
