Image credit: duluoz cats /Flickr At the end of Word War II, the proverbial “Iron Curtain” fell between Western Europe and the Soviet Union. The barrier, which was as much a real obstacle—defended by soldiers and tanks—as it was a symbolic divide, prevented travel, trade, and communication

between the two halves of the continent. Now, new research is suggesting that the barrier intended to isolate people and economies, also worked to keep invasive species out…. Read the full story on TreeHugger

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The Iron Curtain Stopped Invasive Species