And finally, nine cities around the world played host to “Live Earth” on Saturday. Former Vice President Al Gore spearheaded the event to raise awareness on global warming. Concerts were held in London, New York, Washington, Sydney, Rio de Janeiro, Johannesburg, Tokyo, Shanghai and Hamburg. At the New York show, Gore asked audience members to agree to a seven-point pledge on saving the Earth.

Al Gore: “I pledge to demand that my country join an international treaty within the next two years that cuts global warming pollution by 90 percent in developed countries and by more than half worldwide in time for the next generation to inherit a healthy Earth. I pledge to take personal action to help solve the climate crisis by reducing my own CO2 pollution and offsetting the rest to become carbon neutral. I pledge to fight for a moratorium on the construction of any new generating facility that burns coal without safely trapping and storing the CO2.”