Paris climate agreement

Mayors announce Global New Green Deal in Copenhagen

mayors meet at C40 Mayors Summit in Copenhagen
Zero Hour founder Jamie Margolin, L.A. Mayor Eric Garcetti and Paris Mayor Anne Hidalgo attend a press conference in Copenhagen in conjunction with the C40 Mayors Summit on Oct. 9. Photo: Liselotte Sabroe/Ritzau Scanpix/AFP via Getty Images

Mayors from 94 cities committed to cutting emissions from the sectors that most contribute to climate change (transportation, buildings, industry and waste) to keep global temperatures below the 1.5-degree Celsius goal of the Paris Agreement.

The big picture: The Global New Green Deal was announced today at the C40 Mayors Summit in Copenhagen. Despite the U.S. government pulling out of the Paris Climate Agreement, cities have committed to meeting greenhouse gas reduction goals.

Expert Voices

Airports embrace renewable energy to cut air travel emissions

Illustration of an airplane runway in the shape of a recycling symbol
Illustration: Sarah Grillo/Axios

Airports in the U.S. are attempting to reduce emissions by replacing equipment with electric- and solar-powered technology.

Why it matters: Air travel accounts for 2% of global emissions, and cities and public agencies are uniquely positioned to use their relationships with airlines and terminal operators to impact emissions reduction practices at the airports themselves.