Carbon Emissions From 30 of the World’s Largest Cities Are Already Dropping Since Signing Climate Pact

C40 CITIES and GOOD NEW NETWORK – The world’s leading scientists have calculated that global greenhouse gas emissions must peak by 2020 in order to limit global temperature rise to 1.5°C. New analysis published ahead of the C40 World Mayors Summit confirms that 30 of the world’s largest cities, representing more than 58 million urban citizens, have now reached this crucial milestone.