Most of us know the sad and destructive history of former widespread pesticide DDT (dichlorodiphenyltrichloroethane for you chemists). It’s egg shell thining properties have famously taken out many a generation of bald eagle, as well as many other bird species. The once heralded solution to malaria, DDT was sprayed everywhere without a thought. This attitude of pesticide being “a-ok” lasted into the 1980’s, and lead to this most hilarious and sad poster (seen above) of two attractive young ladies having a pesticide fight. Try suggesting that one these days as a fun game for the whole family.

When environmental and health concerns were raised in the scientific community, an out cry called for the banning of DDT, and in 1972 the ban went into effect. Unfortunately for all of us, the half life of DDT is 30 years. So for those of us scoring at home, there is still almost half the DDT left floating around in our environment that was sprayed the year of the ban… 37 years ago!

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