Magazine article from our research archive:

Glaciers releasing chemical cocktails.(Brief article)

Frozen stores of the pesticide DDT are leaking from melting Antarctic glaciers, according to a new study.

Marine biologist Heidi Geisz of the Virginia Institute of Marine Science in the USA, led a team that sampled DDT levels in penguins. A 1964 survey found small amounts in the penguins, and because worldwide use of the pesticide has plummeted--from 40,000 tonnes per year in 1980 to 1,000 tonnes per year currently--she expected to find a comparable drop in the penguins.

Instead, she found similar levels of DDT and low levels of DDE (the chemical ...

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