This Is What Climate Change Sounds Like

摘要

One of the best instruments scientists can use to map climate change is roughly the size of a thumb-and adorable. The humble tree frog (genus Hyla) has proliferated from Florida to Alaska, yet it's a delicate critter. Its disappearance from a habitat is an early warning that the place is becoming deforested, drier, or simply hotter. But tree frogs tend to hide from people tramping through the woods, and many possess camouflage, making them tough to spot. They're a lot easier to hear.