The other is "Overflow Through Method" by pumping ballast water into the tank and allowing the water overflow through the openings on the tank top. In both cases, a ship is required to run an ...

In May 1969, the U.S. Navy’s nuclear-powered attack submarine USS Guitarro sank at Mare Island Naval Shipyard in California ...

invasive aquatic species transported in ships’ ballast water tanks were considered as significant an environmental challenge as greenhouse gas (GHG) emissions. These invasive species ...