Nineteen Cities Agree to Net Zero Carbon Buildings by 2030

A total of 19 global cities have agreed that all new buildings in their cities will operate at net zero carbon by 2030.  In addition, policies will be put in place to ensure that all buildings meet the same standard by 2050, whether they are new or old.  The Net Zero Carbon Buildings Commitment will be officially launched at a global climate summit due to take place in San Francisco on 13th September.  Cities that have signed up to the agreement include Copenhagen, Johannesburg, London, Los Angeles, New York, Paris, Sydney, Tokyo, and Tshwane.

Under the commitment, new buildings will be required to use energy efficiently, and the energy they do use will be from renewable sources.  The World Green Building Council developed the zero carbon commitment, which it says will “aim to maximize the chances of limiting global warming to below 1.5 degrees by drastically reducing operating emissions from buildings”.  The new commitment will not only help to meet carbon reduction targets under the Paris Agreement, but will also help to reduce air pollution, a major cause of health problems in big cities.

While the commitment currently focuses on the operating emissions from buildings, it is expected that over time it will progress to include embodied carbon, that is, the emissions emitted during the manufacture, transport, and construction of a building.

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