Aerial view of Bogotá, Colombia, host city for WRI’s January 2025 convening on air quality and electric mobility. Photo: ...

Air pollution is one of the most serious environmental threats to human health worldwide. In 2021, it caused 8.1 million deaths, an increase from 7 million recorded in previous studies. In Africa, ...

People sit outside in Bogotá, Colombia. WRI analysis shows the city has the potential to increase its tree cover by 244%.

Shenzhen Talent Park in Houhai Central District. Photo: Andrii Zymohliad/Flickr In Shenzhen’s Houhai Central District, summer ...

Oslo’s City Ring Road after multimodal safety improvements. Photo courtesy of City of Oslo, Norway In 2015, the City of Oslo, Norway, made a commitment after years of rising transportation injuries to ...

Walking is the oldest, most democratic way to get around. But as urban areas have become more sprawled, walking has slowly been suffocated by other modes of transport that are less healthy for both ...

An installation crew from Alexandra Water Warriors tests a litter trap in the Jukskei River. Photo: Jenna Echakowitz/SUNCASA In Gauteng Province, the Jukskei River winds its way through the heart of ...

Our impressions of a city are formed mainly by the quality of public spaces. If they are not pleasant and preserved, or if they transmit a sense of insecurity, we will seldom return. Good planning of ...

Newly planted trees line the Piassa-Mexico-Sarbet-Gotera-Wollo Sefer corridor in Addis Ababa, Ethiopia. Implemented during the first phase of the city’s corridor development project, the trees provide ...

This series, supported by the Volvo Research and Educational Foundations, discusses walking and cycling in cities with a special focus on low- and middle-income countries. Many cities have streets ...

In Nairobi, Kenya, a group of women and children board a minibus. Despite progress made in promoting women’s urban mobility, women and girls in Africa still face disadvantages when utilizing local ...

A New York City school bus drives down Fifth Avenue in Manhattan. New York is one of the state’s poised to benefit the most from school bus electrification. Photo: DogoraSun/iStock This estimate ...