Climate change is already taking a major toll on human health. In nearly every corner of the globe, its fingerprints are beginning to appear on damaged lungs, brains, and kidneys. In Grist’s yearlong series Vital Signs, reporting from five continents shows how record-breaking heat, supercharged storms, and extreme drought are creating mounting challenges for public health — and how people around the world are facing those challenges head-on.

  This project is funded by the Wellcome Trust.