Ballast Water en New Ballast Water Requirements <P><FONT size=3 face=ARIAL><FONT size=3 face=ARIAL>The U.S. EPA has issued new requirements for cleansing ballast water dumped from ships, which scientists believe has brought invasive species that damage ecosystems and cost the economy billions of dollars. Fri, 29 Mar 2013 16:24:26 +0000 Jim Letizia & Associated Press 33158 at