The event promotes mass transit, cycling and walking, and the development of communities where jobs are closer to home and shopping is within walking distance.
In a historic and far-reaching move, as part of Pope Francis' efforts to highlight environmental issues, the Vatican declared Sept. 1 World Day of Prayer for the Care of Creation.
The manifesto urged nations to find peaceful ways to settle differences and to renounce the use of nuclear weapons, which only promised "universal death."
On June 30, 1985, 30 years ago today, Haruo Remeliik, the president of anti-nuclear Palau, had his brains blown out.
Robert Redford said moderate climate is going extinct.
Top leaders of seven nations at the G7 Summit discuss "the global economy as well as... foreign, security and development policy."
Deemed the worst earthquake to hit the nation in 80 years, the death toll has risen to more than 7,500.
The British passenger liner Lusitania was torpedoed by a German U-boat 18 miles off the Irish coast.
The death toll soared past 3,700, even without a full accounting from mountain villages that workers were still struggling to reach two days after the disaster.
Three decades after lethal gas swept through Bhopal, the central Indian city remains haunted by memories of the world's worst industrial disaster.