Is It for the U.S. to Revisit Its Ban on DDT?

Populations of mosquitoes thriving without the insecticide could spread diseases like Zika and dengue – and global warming hasn't even kicked in yet.

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The ban by many countries in the 1970s and '80s on the use of the insecticide DDT may have saved many species of wild animals from extinction, but it also has led to an explosion in mosquito populations. Among...