https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:biodiversity-and-human-impacts/x230b3ff252126bb6:humans-and-biodiversity/v/human-impacts-on-ecosystems-video 2022-09-24T04:45:13.131282509Z Human impacts on ecosystems Anthropogenic changes (induced by human activity) in the environment—including habitat destruction, pollution, introduction of invasive species, overexploitation, and climate change—can disrupt an ecosystem and threaten the survival of some species. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/b1089156-0a34-4c68-b45e-9796f88b7fe9_1280_720_base.png Human impacts on ecosystems Anthropogenic changes (induced by human activity) in the environment—including habitat destruction, pollution, introduction of invasive species, overexploitation, and climate change—can disrupt an ecosystem and threaten the survival of some species. https://cdn.kastatic.org/ka-youtube-converted/K10qnzCYH54.mp4/K10qnzCYH54.mp4 336 Human Impact on Earth's Processes https://www.khanacademy.org/science/biology/ecology/biogeochemical-cycles/v/eutrophication-and-dead-zones 2025-08-08T21:39:42.49220884Z Eutrophication and dead zones Eutrophication, derived from the Greek for "well-nourished" refers to over-nourishment of aquatic ecosystems due to excessive use of fertilizers and detergents. This leads to algal blooms, which, when they die and decompose, consume oxygen in the water, creating hypoxic or "dead" zones. This imbalance in nutrients can have devastating effects on aquatic life. Sal Khan video https://cdn.kastatic.org/googleusercontent/7fe41E4X4zGaGoFztcn8w2eP1_uLjJmKqrbt4XusfIWuOVUx8mqnQekcSauRSoKdhvIjNWD9k0eXuXjDdIrR3rVrqQ Eutrophication and dead zones Eutrophication, derived from the Greek for "well-nourished" refers to over-nourishment of aquatic ecosystems due to excessive use of fertilizers and detergents. This leads to algal blooms, which, when they die and decompose, consume oxygen in the water, creating hypoxic or "dead" zones. This imbalance in nutrients can have devastating effects on aquatic life. https://cdn.kastatic.org/ka-youtube-converted/AxaWXWd2pw4.mp4/AxaWXWd2pw4.mp4 396 Human Impact on Earth's Processes https://www.khanacademy.org/science/mh-grade-8-science/x0f256b8de9c7cf34:ecosystems/x0f256b8de9c7cf34:impact-of-human-activities-on-ecosystems/e/human-impact-on-ecosystems 2025-12-16T23:30:53.080179241Z Human Impact on Ecosystems An exercise on Human Impact on Ecosystems for middle school students. Joel Prakash Stephen exercise