Let’s stop pretending “natural” gas is in any way good for the environment
C40's David Miller reveals that "natural" gas and liquefied natural gas are not the climate-friendly "transition fuels" many claim they…
‘Letter to Air’ by Acting Governor of Jakarta, Heru Budi Hartono
Hear from the Acting Governor of Jakarta, Heru Budi Hartono, ahead of the International Day of Clean Air for blue...
‘Letter to Air’ by Mayor of Austin, Kirk Watson
Hear from the Mayor of Austin, Kirk Watson, ahead of the International Day of Clean Air for blue skies on...
‘Letter to Air’ by Mayor of Portland, Ted Wheeler
Hear from the Mayor of Portland, Ted Wheeler, ahead of the International Day of Clean Air for blue skies on...
Clean Air Zones – A Win for People and the Planet
What Mayor Hidalgo is achieving in Paris has been an inspiration for cities around the world, and today, C40 is…
The breathtaking expansion of São Paulo’s green space
By C40 Executive Director, Mark Watts I’ve just returned from Brazil, where the nation was responding to the tragedy of...