Dear EarthTalk: How are bat species doing these days? Concerningly, the most recent answer from the International Union for Conservation of Nature is that 85 bat species are endangered, and 23 critically so. Furthermore, over half of all bat species are facing severe population declines according to the North American Bat Conservation Alliance’s 2023 report. Numerous studies including a 2018 report by the American Wind Wildlife Institute have linked wind turbines to between 90,000 and 400,000 bat deaths. Readers can play an important role by participating in the North American Bat Monitoring Program, turning off unnecessary lights at night, and promoting natural habitats where possible.