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...administration found that "no defect exists." Even when closing the book on a complaint, the NHTSA includes a disclaimer in each report explaining that its determination not to look into an issue doesn't constitute a finding that there's definitely no safety-related defect. (See GM's great hopes...
...certain that Asian carp have made it into the Great Lakes. The Mississippi River system and the Great Lakes are connected only through the man-made Chicago Sanitary and Ship Canal, which leads from Lake Michigan to the Illinois River. (It's not uncommon for invasions to occur when humans connect ecosystems that have naturally been kept separate.) The Army Corps of Engineers put an electric barrier in the canal to prevent the carp from infiltrating Lake Michigan, but it may not have been enough - although no live fish have been found yet, last month a team of scientists discovered...
They're called Asian carp, and they emigrated to the lower reaches of the Mississippi River in the 1970s. Now they're knocking on the door of the Great Lakes, threatening to destroy one of the most valuable aquatic regions in the U.S., unless the often fractious Great Lakes states manage to pull together and keep them out. The situation is so serious that the White House convened an "Asian carp summit" on Monday to work out a defense plan. "If the carp invade the Great Lakes, it will change them forever," says Jennifer Nalbone, director of invasive species...
...algae in their ponds; the fish slowly escaped into the wild and have been making their way up the Mississippi River. They are eating machines; bighead carp can grow incredibly quickly and reproduce rapidly as well. "They just eat so much," says David Ullrich, executive director of the Great Lakes and St. Lawrence Cities Initiative. "They're like the locusts of the river...
That's what makes them so dangerous to the lakes. Asian carp aren't direct predators, but they eat plankton, which knocks out the bottom layers of the food chain. If they were to successfully establish themselves in the Great Lakes and start breeding, they could utterly disrupt the existing ecosystem, potentially starving out the trout and other native fish that make the Great Lakes a tourism hot spot. (See 10 species nearing extinction...