Sunday 23rd January 2022
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30 cities peak greenhouse gas emissions

Ahead of the C40 World Mayors Summit holding in Copenhagen, Denmark from October 9 to 12, 2019, scientists have confirmed that 30 of the world’s largest cities, representing more than 58 million urban citizens, have peaked their greenhouse gas emissions.

New York City
New York City in the US has peaked its greenhouse gas emissions

The 30 cities are: Athens, Austin, Barcelona, Berlin, Boston, Chicago, Copenhagen, Heidelberg, Lisbon, London, Los Angeles, Madrid, Melbourne, Milan, Montréal, New Orleans, New York City, Oslo, Paris, Philadelphia, Portland, Rome, San Francisco, Stockholm, Sydney, Toronto, Vancouver, Venice, Warsaw, and Washington, D.C.

Austin, Athens, Lisbon, and Venice are the latest cities to join the group.

The world’s leading scientists have calculated that global greenhouse gas emissions must peak by 2020 in order to limit global temperature rise to 1.5°C

The fact that 30 of the world’s largest and most influential cities have already peaked greenhouse gas emissions demonstrates that a rapid, equitable low-carbon transition is possible, and is already well underway, says C40, adding that, since reaching peak emissions levels, the 30 cities have reduced greenhouse gas emissions by an average of 22 percent. Copenhagen, the host city for this year’s C40 World Mayors Summit, has reportedly reduced emissions by up to 61 percent.

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Presently, half of all C40 cities are said to have already reached peak emissions, are projected to achieve peak emissions by 2020, or have made concrete commitments to meet this ambitious goal. Though global emissions are still rising, cities are leading the charge to meet the critical targets the whole world now needs to achieve.

Mayors recognise the wide-ranging social, economic, and environmental benefits of climate action, and for the past decade, C40 cities around the world have reportedly been accelerating action needed to create healthier, cleaner, and more prosperous communities.

Some examples of the progress cities have accomplished over the past 10 years are listed to include:

  • 82 C40 cities have implemented cycle hire schemes, compared to 13 in 2009.
  • There are more than 66,000 electric buses on the streets of C40 cities, compared to fewer than 100 in 2009.
  • 24 C40 cities have committed to achieving 100% renewable electricity by 2030, compared to 4 in 2009.
  • 18 C40 cities have banned or restricted single-use, non-recyclable plastics, compared to 2 in 2009.
  • 17 C40 cities have restrictions on high-polluting vehicles that cover a significant part of the city, compared to three in 2009.
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“The C40 cities that have reached peak emissions are raising the bar for climate ambition, and at the same time, exemplifying how climate action creates healthier, more equitable and resilient communities,” said Mark Watts, Executive Director of C40 Cities.

“But this is nothing to win medals for – emissions across the whole world need to stop rising and start falling within the next year, if we are to keep global heating below 1.5 degrees. With the vast amount of expertise and resources now available through the C40 Knowledge Hub, we’re going to see even more cities accelerating their climate action to limit global heating and deliver the future we want,” he added.


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