Black mamba scales reveal heavy metal pollution through noninvasive scale clipping, measuring lead, mercury, arsenic and cadmium to map urban toxin hotspots
Chemical pollutants alter wildlife and human behavior, with toxicologists delaying neurobehavioral testing and studies showing feminization of male fish
Global analysis shows the most damaging wildfires have increased 4.4 times since the 1980s, with 43% of the 200 costliest fires since 1980 in the last decade