As the globe warms, scientists warn about melting ice caps, rising sea levels and odd, extreme weather. But there’s another threat that may already be emerging: New (and old) diseases spreading in places once thought safe.
Melting permafrost may release “zombie pathogens” that have been frozen in ice for centuries, while warming temperatures will allow disease-spreading insects to roam far and wide. Threats now confined to the tropics will likely become problems at higher latitudes. Here are a few of the diseases that could thrive in a warming world.