Hacker News1d agoenergy 50

Dam removals are bringing fish back across the northeastern United States

Dams block the flow of a river to hold water in a reservoir, which can be used for agriculture, recreation, household needs or industry. The flow of water through a dam can generate hydroelectric power. Aging dams are being dismantled across the country, restoring the natural flow to rivers.
image: Hacker News

While the demolition of big dams in the West gets more attention, many of these often-obsolete obstructions are also coming out of northeastern streams and rivers—and herring are returning in droves

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