Signaling a departure from the Bush administration’s environmental policies, Secretary of State Hillary Clinton has named Todd Stern as special envoy for climate change and vowed that America will “vigorously pursue negotiations, those sponsored by the United Nations, and those at sub-global, regional, and bilateral level that can lead to binding international climate agreements.” In his acceptance speech on Monday, Stern, a veteran of the Clinton administration, also foreshadowed the United States signing on to international environmental treaties, including the Kyoto Protocol. “The time for denial, delay, and dispute is over,” Stern said. “The time for the United States to...