Manta rayJune 25, 1997: Jacques-Yves Cousteau dies in Paris. The legendary ocean explorer helped introduce the world to the wonders of the deep.

June 25, 2007: In a stormy Congressional hearing marked by shouts and catcalls, former U.S. Environmental Protection Agency (EPA) chief Christie Whitman says allegations that her agency covered up health risks after the 2001 destruction of the World Trade Center are "downright falsehoods."

June 25, 2009: The International Union for the Conservation of Nature (IUCN) reports that 32 percent of all species of ocean sharks and rays are threatened with extinction. Habitat loss, overfishing, and the practice of "finning" sharks for shark fin soup are principal culprits.

Photo: David McMurdie/Wikimedia Commons

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