A report by C40 and the McKinsey Center for Business and Environment, Focused Acceleration: A Strategic Approach to Climate Action in Cities to 2030 details the biggest opportunities for emissions reduction, making it easier for cities to identify actions with the potential to deliver the greatest emissions reductions by 2030. The report highlights 12 key opportunities across four action areas that have the greatest potential in most global cities to curb emissions and put cities on track to limit global temperature rise to 1.5°C — decarbonizing the grid, optimizing energy efficiency in buildings, enabling next-generation mobility and improving waste management.