the Dalai LamaApril 6, 1981: Lois Marie Gibbs, the housewife-turned-activist who became a leader in the fight against toxic waste sites, founds the Citizens Clearinghouse on Hazardous Wastes. Gibbs, whose Love Canal neighborhood in Niagara Falls, New York was razed after it was discovered to have been built on toxic waste dump, still leads the group, which has been renamed the Center for Health and Environmental Justice.

April 6, 1983: Saying that they would attract "the wrong element," U.S. Interior Secretary James Watt orders the cancellation of a July 4th rock concert on the Washington Mall. The planned headliners for the show were the Beach Boys, who count First Lady Nancy Reagan among their fans. By the following July 4th, the Beach Boys are back on the Mall, but James Watt is gone.

April 6, 2005: The Wildlife Trust of India enlists the support of the Dalai Lama (at right) in calling for an end to wildlife poaching in Tibet, Nepal, and throughout the Himalayas. "Everything that our Earth holds is a treasure and is like ornaments, without which life would be very boring and dull," he said. "It is a shame that we kill these poor animals to satisfy our own aggrandizement."

Photo: Elaine Thompson/AP

This feature is compiled by Peter Dykstra, an MNN contributor and publisher of Environmental Health News and The Daily Climate.