Climate change is what the people at the Pentagon like to call a “threat multiplier.” Warming takes existing dangers like political instability in developing nations, and amplifies them in ways that can be hard to predict — but which are rarely positive. That goes for human health too.
5 Reasons Climate Change Is Bad for Your Health
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Rising temperatures also mean rising pollen levels, which is bad news for the 36 million Americans who suffer from seasonal allergies. A recent study in the Proceedings of the National Academy of Sciences found a connection between hotter weather and a longer ragweed pollen season. As the climate continues to change, plants that produce a lot of pollen — like oaks and hickories — will move north and displace trees like pines and fir that are less hypoallergenic. The future is looking sneezy. More on Time.com: Get Out the Kleenex — Climate Change Lengthens Allergy Season
