Beavers, those playful and industrious flat-tailed rodents, have been managing ecosystems for more than 10 million years, and they're gotten to be very good at it. So good, in fact, that most scientists accept that beavers are far more adept at protecting forests and prairies than people.
Recently, scientists relocated 69 beavers to a river basin in northwestern Washington state, and found that, on average, their dams cooled the streams by more than 4 degrees Fahrenheit (2.3 Celsius) during certain times of the year. Another study, published in 2017, saw similarly large drops in temperature after beavers built dams. The lakes and ponds become community centers for a wide variety of nearby animals from deer and mice to frogs and trout, and they often provide protective barriers that stop or slow the spread of deadly wildfires.
As we work to try and slow the climate crisis, we might well consider thinking more like beavers.