C40 Cities

Green Alliance report argues that by harnessing collective bargain power and focusing on greener supply chains, cities can ramp up decarbonisation efforts

Policies pushing for clean transport, buildings, industry and energy in global cities could slash greenhouse gases and air pollution, C40 finds

19 Mayors from around the world sign up to Net Zero Carbon Declaration

The Climate Group and C40 Cities-led initiative sees firms and governments unite to boost EV purchasing power and drive demand for low carbon transport

Flooding, heat waves, and droughts threaten billions of people in cities around the world by 2050 unless bold action is taken, research led by C40 cities estimates

C40 research reveals cities may have a 60 per cent larger carbon footprint than previously estimated

High Court hearing confirmed for latest air quality legal challenge, as London Mayor Sadiq Khan kicks off new global drive to improve urban air quality

A new partnership between Climate-KIC and C40 aims to make cities the crucible for low-carbon innovation

London's £10 levy on the most polluting cars highlights how bold regulation can help stimulate new markets

Presidents and prime ministers may have stopped talking about climate change, but mayors are determined to deliver a prosperous low-carbon future, argues C40 Cities' Mark Watts