Soylent GreenMay 9, 1973: In an overpopulated New York City of the future, Charlton Heston discovers what's in those little green patties that are fed to the people: The People are in them. The film "Soylent Green" (at right) is released.

May 9, 2007: Sir Rupert Murdoch, who presides over a global news empire, commits his News Corporation to an aggressive plan to reduce its carbon footprint. "Climate change poses clear, catastrophic threats. We may not agree on the extent, but we certainly can't afford the risk of inaction," Murdoch tells a gathering of his corporate leaders. But many of Murdoch's news organizations, like Fox News in the U.S., still tell the world the opposite.

May 9, 2007: Just two days after a mile-wide tornado flattens the town of Greensburg, Kansas, town leaders begin forming a rebuilding plan for a thoroughly "green" Greensburg featuring LEED-certified buildings and homes and maximally-efficient water and energy resources.

Photo: ZUMA Press

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