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The Local Food Hub in the Charlottesville, Va., area is an example of a new trend: nonprofit distribution enterprises that aggregate food produced by small-scale local farmers and move it quickly to local customers such as restaurants, schools, and retirement homes.

One key chemical tool used to control mosquito-spread malaria in the developing world -- DDT -- has harmful environmental consequences. Now a new article in the journal Nature tells of research on chemicals that may promise to be effective mosquito repellants by blocking the insects' ability to detect carbon dioxide.

"Wild animals normally are killed by cancer only in rare cases. But scientists are finding that some deadly cancers in animals--including Quebec's belugas, California sea lions and North Sea flounder--seem to be triggered or accelerated by environmental contaminants."

Bayer's plant at Institute, West Virginia, said that it would reduce by 80 percent its production of methyl isocyanate, the highly toxic chemical that killed thousands in the 1984 Bhopal disaster.