President Obama is among the G8 leaders gathered in Italy. On Wednesday, a group of activists with the environmental group Greenpeace scaled the Mount Rushmore National Memorial in South Dakota and hung a banner calling on Obama to take action on global warming. The activists hung the banner next to the carved mountain face of Abraham Lincoln. The banner reads, “America honors leaders not politicians: Stop Global Warming.” The group of eleven Greenpeace activists who hung the banner were later arrested.