"Today, September 20th, these inspiring young leaders have called for adults to join them for a global climate strike. We have an opportunity to show, not only that we hear their message, but that they have inspired us to act even faster," they said in a joint statement.
"As mayors, our greatest responsibility is to protect the lives and wellbeing of those that live in our cities. As adults, our obligation is to leave the world in a better state for our children than we inherited it," they said.
"That is why we are supporting the global climate strike. Mayors around the world, working through C40 Cities, are committed to deliver on the Paris Agreement and taking action to peak their emissions as our cities already have and bring them down sharply by 2030.
"Many businesses, investors, labour groups, faith leaders and local communities share our urgency...Young people are telling us that the climate emergency demands an emergency response. We couldn't agree more," the Mayors added.
They are the Mayor of Paris and Chair of C40 Cities, Anne Hidalgo; Mayor of New York City, Bill de Blasio; Mayor of Los Angeles, Eric Garcetti; and Lord Mayor of Copenhagen, Frank Jensen.
Following next week's UN Climate Action Summit, these four leaders will be among 70 plus Mayors committing to more ambitious climate action at the C40 World Mayors Summit in Copenhagen on October 9-12.
C40 Cities connects 94 of the world's greatest cities to take bold climate action, leading the way towards a healthier and more sustainable future.
( With inputs from IANS )