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Pollution is undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities so that the environment becomes harmful or unfit for living things; especially applicable to the contamination of soil, water, or the atmosphere by the discharge of harmful substances. In addition to the harm to living beings, both present or future and known or unknown, pollution cleanup and surveillance are enormous financial drains of the economies of the world. This book focuses on issues and developments critical for the field.
Centuries of mismanagement and destructive development have gravely harmed American waterways, with significant consequences for the ecosystems and communities built around them. But a range of passionate and committed people have stepped up to restore streams and rivers around the United States. A husband-and-wife scientist team in Pennsylvania lead projects to unclog the sediment left by early colonists’ dams. Members of the Tulalip Tribes in western Washington State bring beavers back to headwater streams. A public servant in Milwaukee drives the sewer department to remove concrete channels and reduce flood risk. Community activists in Atlanta push for environmental justice in river res...