cities
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Earth
The survey reveals that all of the largest cities in the United States have sunk. Groundwater pumping is the main cause of most
A new study using recent satellite data shows that all U.S. cities with a population of over 600,000 people have sunk to some degree. Credit: Ohenhen et al. , Nature Cities, adapted from 2025 A new study of 28 most populous US cities finds that everything is sinking to some degree. The city contains much of the interior, not just…
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Other Sciences
Infrastructure as a territorial stigma: How cities eliminate migrant workers
Credit: Unsplash/CC0 Public Domain Dr. Nebeela Ahmed, an associate at Urban Institute, published a new article in the International Journal of Urban and Regional Studies entitled “Infrastructure: Exclusion of Labour Migration in Indian Cities.” Cities as exclusive sites for immigration are widely established throughout the global literature. Global cities and the infrastructure that utilize them measure surveillance and boundary practices,…
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Earth
Wind Dust: How cities change natural aerial particles
One of the 20 dust collectors, Jeff Munroe, a geologist at Middlebury College, is deployed on mountain peaks around the southwest of the United States. Credit: Jeff Manroe Air dust pollution is an increasing problem for residents of Utah and other western states. In particular, as the lake dries, the exposed lake bottom of Great Salt Lake can become potentially…
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Environment
Morocco’s Water Expressways avoid crisis in big cities, but question sustainability
Morocco has built a conversion dam in one of its largest rivers and is redirecting the flow to avoid the water crisis as part of a $728 million project. Morocco spends hundreds of millions of dollars on tapping rivers to the north to water dry cities to the south, but experts have questioned the sustainability of projects facing climate change.…
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Earth
These California coastal cities face increasing flood risk from the tsunami, data shows
Credit: Pixabay/CC0 Public Domain The risk of damaging floods from major tsunamis may be greater than many people realized along California’s famous coastline range, state officials say it will further strengthen the need to take notes when residents live or visit dangerous areas. The latest risk assessment, published by the California Geological Survey and outlined in a map reviewed by…
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Environment
Why Freetown’s famous tree planting scheme doesn’t work in other African cities and planets
Credit: Unsplash/CC0 Public Domain Since 2020, more than 1 million trees have been planted in Freetown, Sierra Leone. Known as “Freetownthetreetown,” the planting plan is celebrated with an ambitious plan to plant another five million trees by 2030 and another five million by 2050. The mayor’s global network known as C40 cities and other urban development experts calls it a…
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Environment
Making Australia’s growing cities more sustainable
Peter Newton, James Whitten, Magnus Moglia, Stephen Glackin, The Conversation The way we organize our cities and regions creates problems everywhere. We face difficult and polluting car commuting, a lack of affordable housing, and urban design that creates car dependence and negatively impacts health. For example, lower levels of walkability are associated with higher rates of obesity, hypertension, and cardiovascular…
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Science
Pollution levels in Pakistan’s biggest cities hit record high, officials say
Air pollution in Lahore, Pakistan’s second-largest city, soared on Saturday, hitting an all-time high, officials said. Air pollution in Lahore, Pakistan’s second-largest city, soared on Saturday, hitting an all-time high for the smog-choked metropolis, officials said. For days, the city of 14 million people has been shrouded in smog, a mixture of fog and pollutants caused by low-grade diesel fuel,…
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