The Carbon Neutral Cities Alliance (CNCA) is a collaboration of leading global cities working to achieve carbon neutrality in the next 10-20 years – the most aggressive GHG reduction targets undertaken anywhere by any city.

'Achieving a 20% reduction in greenhouse gas emissions in 2030 compared to the 2017 base year - until we reach the neutralization of emissions in 2050 - will require joint, coordinated and committed action on the part of everyone. It's possible.' 