Transgenic plants provoke petition . Hubble eyes springtime on Uranus Using the Hubble Space Telescope, astronomers have for the first time viewed the northern hemisphere of Uranus with modern detectors. A leading source of PCBs Breast milk provides large amounts of potentially neurotoxic chemicals to infants. Intellectual impairment in children exposed to polychlorinated biphenyls in utero. Raloff, J. 1997.
Jury is still out on PCBs' aging effects .
Online June 21. PCBs' legacy can affect next generation. The incidence of a common male birth defect is climbing throughout the United States, and hormone exposures are suspected of playing some role. J.D. Erickson, and R.J. Jackson. 1997. Hypospadias trends in two US surveillance systems.