If you thought it was hot in 2014, it wasn’t just you. Last year was the hottest on earth since the beginning of record-keeping in 1880.
Thanks to increased travel, and possibly global warming, mosquitoes are bringing more diseases from the tropics to North America. One in particular—dengue fever—can be deadly.
In the third installment of our three-part look at underreported aspects of Climate Chaos, we cover a Washington conference which revealed terrifying new dimensions of the problem…but couldn’t quite get around to causes and cures.