Animals and plants play a critical role in maintaining life on Earth, yet climate change and human activities continue to threaten ecosystems around the world. As temperatures shift and habitats change, many species are experiencing population declines, and some are even being pushed toward extinction. One well-known example is the passenger pigeon. Once estimated to have a population of 3–5 billion individuals and making up roughly 25–40% of all birds in the United States, t

Learn about agricultural/industrial impact on the environment.

Know about climate change impacts.