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. As a part of CNCA, NYC commits to carbon neutrality through radical, transformative changes to core city systems, such as a plant-forward approach to reducing our greenhouse gas emissions 80% by mid-century, and investing $20 billion to adapt our neighborhoods to climate change risks such as flooding, heat, and sea level rise. Check out New York City's profile on their site by clicking here.