In 2016, 397 cities reported that climate change does present an economic opportunity and identified over 1,000 opportunities. 270 of these cities identified the development of new business industries, such as clean tech, as an opportunity.
Publicly reported projects in development across C40 cities from the CAM (Climate Action in Megacities) 3.0 study undertaken by C40 and Arup, supported by the City Leadership Initiative at UCL.