With just over a week to go before Chinese President Xi Jinping begins his first State Visit to the United States, there is much evidence to suggest that bilateral action to fight climate change is an area most ripe for meaningful Sino-U.S. cooperation. What’s on the table? What form might further breakthrough take? If there is progress, how could it affect the U.S.-China relationship more broadly? What’s possible? What’s likely to happen?—The Editors