UNWANTED GUESTS by ProQuest

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Birkholz, the bill's sponsor, says inadequate regulation of ballast water by the federal government created a need for states to act. Of particular concern in California is hydrilla, which can displace native vegetation, clog waterways, disrupt water control features and hydroelectric facilities, and reduce water flow in canals. [...] cheatgrass fed the largest blaze in Utah's history and Idaho's largest in 97 years, both in 2007.

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