Microorganisms have been changing the climate, and have been changed by the climate, throughout Earth’s history. As we experience unprecedented environmental impacts from climate change, microorganisms will respond, adapt, and evolve in their surroundings. Because they have generation times as short as a few hours, they will do so at higher rates than most other organisms. This makes microbes
... [Show full abstract] ideal sentinels for understanding the effects of climate change on biological systems and the global biogeochemical cycles that microbes mediate. Scientists can study the effects of climate change on microbes to both understand and hopefully predict the future effects of climate change on all forms of life.