Overview

  1. COLLABORATIVE PARTNERSHIPS

    The C40 Cities Climate Leadership Group (C40) is a network of more than 90 cities around the world that are taking measurable and scalable action to reduce their carbon emissions and accelerate progress on combating the negative impacts of climate change.

  2. OUTCOME-DRIVEN METRICS

    Under Mike Bloomberg’s leadership, the C40 adopted a new emphasis on accountability by using outcome-driven performance metrics.

  3. LOCAL ACTIONS

    C40 embodies Bloomberg Philanthropies’ vision for tackling climate change: driving scalable and replicable actions at the city and local level.