This briefing note summarizes an SEI analysis of the GHG abatement potential in cities in a ‘vertically integrated’ system involving close collaboration with higher levels of government.
Action by city governments is essential for achieving deep reductions in global greenhouse gas (GHG) emissions. Previous research has shown that cities – using policy levers already at their disposal – could reduce annual GHG emissions by up to 3.7 gigatonnes (Gt) CO2e in 2030, and up to 8 Gt CO2e in 2050.
Many cities are already engaged in pioneering efforts to achieve these reductions. Greater support from national governments could help realize this potential more fully, quickly, and cost effectively. Maximizing GHG reductions in urban areas will require concerted actions at all levels of government. With greater policy coordination, cities could focus on roles and actions for which they are highly capable and best positioned. We find that under a coordinated approach designed to achieve deep GHG reductions:
A vital role for national governments will be to help coordinate and enable effective action by cities in all of these capacities.
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