The current book, “Ecosystem and Environmental Pollution”, discusses ethno botanical research, environmental toxicity, heavy metals, ambient air pollution, biodiversity conservation, environmental pollution, and vermitechnology. An ecosystem is a geographical area in which plants, animals, and other species coexist with weather and topography to generate a life bubble. Ecosystems contain both biotic (living) and abiotic (non-living) materials. Every component of an ecosystem depends on every other component, either directly or indirectly. A change in the temperature of an environment, for example, has a significant impact on whether plants thrive there. Animals that rely on plants for food and shelter will either have to adapt or relocate to a different ecology.