How can we make all levels of government align in practice? Former UNFCCC Executive Secretary Christiana Figueres outlined two key ways: First, through a global standard of measurement for cities to track and report their climate actions. Under the Global Covenant of Mayors for Climate & Energy, 7,400 cities are already committed to reducing 1.3 billion tons of CO2 by 2030 – equivalent to the emissions of Japan or Brazil, a significant contribution. Strong city leadership is also essential, to ensure cities are organically grown to serve the people they embrace. This is the vision we are working toward.