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jweller001 says on 03-23-2012 pertaining to
New US Coast Guard Ballast Rule Aims at Fighting Species Invasion Oceangoing cargo ships will be required to zap their ballast water with ultraviolet light, chemicals or other treatments before dumping it in U.S. waters under a regulation the Coast Guard announced Friday to prevent species invasions that damage the environment and cause billions in economic losses. The long-awaited rule comes more than two decades after environmental groups began pushing for a crackdown on ballast water, which provides stability in rough seas but often harbors stowaway species from abroad. When the soupy mixtures of water and sediment are discharged in U.S. ports, the newcomers can spread rapidly, starve out native competitors and spread diseases.
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