Because countries’ commitments are not enough, and cities, local governments and businesses can only do so much to keep climate impacts from reaching the most dangerous levels, we need to strengthen the mutually reinforcing relationship between national and subnational climate action ...

As the recent Global Climate Action Summit underscored, we’re seeing a steady rise in the number of commitments by cities, states and provinces to address climate change, with over 17,500 actions registered on the NAZCA Climate Action Portal. Not only are ...