InsideClimate: As the first delegates landed in Peru this week for the latest United Nations climate talks, activists were already taking to the streets of Lima to demand that world leaders take aggressive action against global warming. Hundreds of climate activists and faith leaders gathered in Lima Sunday night for a candlelight vigil. Joining them were Christiana Figueres, executive secretary of the UN Framework Convention on Climate Change, and Manuel Pulgar Vidal, Peru's environment minister and president...