Air pollution in Delhi drops 25% in four years
Five years ago, in 2014, a global study on air quality trends by the World Health Organisation had declared Delhi the most polluted city in the world.
Cities
This archive collects stories about cities as actors in solving local and global challenges. From housing and transit to clean energy and public health, these 327 articles highlight the concrete steps urban governments and communities are taking to improve life for residents.
Chattanooga becomes first 100% solar-powered airport in U.S.
Tennessee’s fourth largest city, Chattanooga, became the first American airport to be 100% solar powered — and joins only a handful of airports who claim the same across the world.
Beijing breathes cleanest air on record
Beijing reported the lowest level of air pollutants in the first half this year since the city started recording related data 35 years ago.
Denver City Council kills contracts with private prison giants
Taking an extraordinary stand against the nation’s two largest private prison companies, GEO Group and CoreCivic, Denver City Council voted not to renew contracts with them worth a cumulative $10.6 million.
Tokyo unveils 2020 Olympic medals, made entirely from recycled cellphones
The Tokyo 2020 organizing committee unveiled its Olympic and Paralympic medal designs. They are all completely made of over six million recycled cellphones.
Indian cities to buy thousands of electric buses
The sudden jump in electric buses purchases is the result of a financial subsidy worth US$360 million, offered by the central government.
New York City begins enforcing Styrofoam ban
The city banned Styrofoam because the material can’t be “recycled in a manner that is economically feasible” or “environmentally effective.”
Paris bans nearly 3 million vehicles during weekdays to curb pollution
The policy is set to ban diesel cars and vans made before Jan. 1, 2006, from the city between 8 a.m. and 8 p.m. on weekdays.
Sydney declares state of emergency over climate crisis
The decision makes Sydney the first major city in Australia to declare a climate emergency, but nearly the 660th to do so worldwide.
Beijing opens new bicycle expressway
Researchers say infrastructure for bicyclists make roads safer for everyone, while reducing congestion and reducing carbon emissions.