Aedes aegypti , found across much of the U.S., spread Zika, dengue, chikungunya and other viruses.
Mailson Pignata/iStock via Getty Images
Female mosquitoes don’t want to lay their eggs alone, but they don’t want sites that are too crowded either. Understanding what guides their choice could inform new control strategies.
The Detroit River inundated Detroit’s Jefferson-Chalmers neighborhood in 2021.
AP/Corey Williams
Mapping where water once flowed is important for managing flood risk today in Detroit and elsewhere.
A construction worker is seen working on the site of a new condo development in Montréal on Feb. 19, 2024.
THE CANADIAN PRESS/Christinne Muschi
A new report on sustainable and affordable housing falls short by failing to fully consider land-and-housing market dynamics.
Huge beech tree with large branches in the enchanted forest in the Basque Country, Alava, Spain.
José Miguel Sánchez/Shutterstock
Feelings of “time scarcity” are on the rise, but research shows that natural surroundings can help us to slow down.
Leaders speak during a plenary session at the COP28 UN climate summit, Dec. 13, 2023, in Dubai, United Arab Emirates. COP28 was notable for being the first COP to provide a substantial platform for sub-national groups.
(AP Photo/Kamran Jebreili)
Subnational authorities are leading the charge on a just transition and dealing with climate change impacts. It is time for this key role to be reflected in international climate negotiations.
Johannesburg.
Getty Images
Citizens in South Africa’s industrial heartland use too much water, the city wastes way too much and there is too much theft of drinking water.
A man pulls his kids behind an electric bicycle near the pier in Huntington Beach, Calif.
Paul Bersebach/Orange County Register via Getty Images
Many incentive programs promote e-bike use, but they aren’t necessarily targeting the right people for the right reasons.
EPA/Everett Kennedy Brown
One of the earliest known references to asbestos may come from Theophrastus, a student of Aristotle and his successor at the Lyceum in Athens.
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‘Situationists’ believe the physical spaces around us, and how we interact with them, has a significant impact on how we feel.
Signs reflecting conspiracy theories around the 15-minute city are displayed outside Parliament Hill in May 2023. Alongside other comparable initiatives, 15-minute cities represent an effort to place collective health and well-being at the centre of urban planning.
(Shutterstock)
Canada’s cities must be planned around resident
health and well-being, our research reveals the key barriers to developing truly healthy cities.
Cities should be planned around existing natural resources.
Stephen Appiah Takyi
The inability of city authorities to enforce land-use regulations has allowed people to carry out ecologically unfriendly activities along the water bodies.
Textured surfaces on city pavements can help make public space more accessible to disabled persons.
(Shutterstock)
Decades of activism have resulted in legislation and infrastructure to make cities more accessible, but the lived experiences of disabled residents shows there’s still a long way to go.
Rankings often focus on economic and developmental factors that overlook sustainability.
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Focusing on metrics that measure a city’s quality of life could be detrimental to its long-term sustainable development.
Researchers investigated how the availability of neighbourhood amenities may have contributed to changes in youth mental health and stress levels during the first six months of the pandemic.
(Unsplash/Paul Hanaoka)
Neighbourhood features may have helped youth cope with the mental health impact of pandemic restrictions. Parks didn’t play much of a role but food amenities and the suburbs did.
People walk under a light projection at a shopping mall in Beijing.
(Photo by Jade Gao / AFPJade Gao/AFP via Getty Images)
China has a lot of vacant retail space, including many underused shopping malls. An urban policy scholar describes how the Chinese are rethinking what the mall is for.
AI could take us beyond the concept of smart cities, telling us how and why things happen in urban settings.
Merchandise is locked in cases to guard against theft in a Target store in New York City on Sept. 23, 2023.
Deb Cohn-Orbach/UCG/Universal Images Group via Getty Images
Shoplifting has been hyped as a driver of chain-store closures, but did these companies ever really understand urban environments in the first place?
The Smart Cities Challenge is designed to address complex economic, environmental and social problems.
(Shutterstock)
The Canadian federal government is pursuing the idea of “smart cities,” but in the wrong way.
Bulldozed land at the planned site of a controversial police training facility, with Atlanta in the distance.
Cheney Orr/AFP via Getty Images
This isn’t the first time that US authorities have criminalized civil disobedience or framed grassroots organizing as a conspiracy.
Palestinians flee to southern Gaza as Israeli tanks block the Salah al-Din road in the central Gaza Strip on Nov. 24, 2023.
(AP Photo/Mohammed Dahman)
Urban warfare and the extensive tunnel network in Gaza benefit Hamas and pose a major challenge to the Israeli military.