August Rewind: Groundbreaking C40 research shows substantial increase in city-led climate actions

During the month of August, we’ll be sharing a selection of highlights from 2014 thus far.  Please enjoy our August Rewind – we’ll be back with more news in September.

At the C40 Mayors Summit in February, C40 released the landmark research report Climate Action in Megacities 2.0 (CAM 2.0), which demonstrates a clear trend of megacities expanding and accelerating their climate actions. Climate actions – from implementing energy efficiency standards for buildings to adding bus rapid transit lanes – aim to reduce greenhouse gas emissions and improve urban resilience to climate change.

Since its publication on, CAM 2.0 has been read more than 6,800 times.

Key findings of the CAM 2.0 report are captured in an infographic, below. These findings include:

  • Reported action has nearly doubled since 2011, with cities now reporting more than 8,000 climate actions currently underway
  • 41% of actions are taking place at a transformative, citywide scale
  • 98% of reporting cities say climate change presents significant risks to their populations and infrastructure
  • C40’s networks have successfully driven collaboration between cities and have led to massive scale-up of projects and programmes. For instance, there is a 500% increase in cities implementing bike-sharing schemes over just two years (6 in 2011 to 36 in 2013)

Sectors included in the report are Adaptation & Water, Energy Efficiency, Energy Supply, Finance and Economic Development, Sustainable Communities, Transport and Waste.