Word: toxicants
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Because checkerspots--a species which Bowers specializes in--feed on plants which contain secondary compounds called iridoid glycosoids, they are highly unpalatable to birds as well. These chemicals, Bower explains, may be toxic to some insects, but checkerspots have evolved mechanisms to excrete them quickly, sequester them in their exoskeleton or detoxify them. Thus the plant protects itself from most predators, and the butterflies render themselves "bitter" and in some cases nauseating. After feeding on members of these specialized species birds often throw...
However, new allegations continued to surface about EPA's management of the toxic-waste Superfund. In a press conference on Thursday, Representative John Dingell of Michigan charged that his committee's investigation into the agency had uncovered new evidence of wrongdoing by EPA officials. Dingell referred to a memorandum that Lavelle sent on Sept. 13, 1982, to White House Deputy Chief of Staff Michael Deaver. In it she proposed that the announcement of some Superfund grants in New Jersey be timed to benefit the election campaigns of two Republicans and that the President make an appearance...
...Congress that establishes a timetable for selection of nuclear-waste disposal sites and methods. Energy Department officials have already announced ambitious plans to pick three sites for exploratory drilling by the end of the summer, a full 15 months ahead of schedule. None too soon: 8,800 tons of toxic nuclear waste are now temporarily stored in pools of water next to existing nuclear plants...
Located some 50 miles east of Los Angeles, the 22-acre Stringfellow Acid Pits are among the worst repositories of toxic waste in the U.S. Before the site was finally shut down in 1972, it was filled with nearly 34 million gal. of hydrochloric, sulfuric and phosphoric acids, chloroform, trichloroethylene and other poisonous manufacturing byproducts. Although California and federal authorities have spent $7 million to contain the damage, the lethal chemicals are still working their way into the ground water, threatening area residents and farms...
Federal law currently recognizes no valid medical uses for cannabis, placing it in a class with toxic addictive narcotics such as heroin. In general the speakers at the Marijuana and Health Symposium recommended the revision of public policy to bring it into line with medical understanding. Dr. Tod Mikuriya, formerly in charge of cannabis research for the National Institute of Mental Health (NIMH), asserted that we have--"not a drug problem--we're dealing with a problem based upon ignorance, denial, hypocrisy, and special-interest greed." He recommended comprehensive drug law reform, including the "repeal of all exemptions from product...