All cities have gone through the ebb and flow of social distancing and lockdowns, with regulations repealed as cases decline and hurriedly re-imposed when cases return. But few urban residents likely ...

Trees in urban areas can lower residents' blood pressure, reduce stress and contribute to an overall sense of well-being. But did you know they can also save cities money? In the world's megacities, ...

It’s easy in America to think of trains with lots of nostalgia and little else. We are so firmly grounded in the culture of cars that when we envision our future of transportation, we can’t see the ...

The world’s population is rapidly moving into city centers; by 2050, seven out of every 10 people on Earth will live in a city. But not every city will be a megacity–defined as an urban area with over ...

🛍️ Amazon Big Spring Sale: 100+ editor-approved deals worth buying right now 🛍️ By Sara Kiley Watson Published Apr 13, 2022 12:00 PM EDT Add Popular Science (opens in a new tab) Adding us as a ...

While only about 3% of the world’s land area is covered by urban areas, cities account for around 70% of worldwide CO2 emissions, about two-thirds of global energy demand, and about 80% of global GDP.

Explore the largest megacities projected for the year 2050 in this in-depth analysis. The video features a countdown from ...

With 10 billion people expected to cram into urban areas by mid-century, the world will add at least 14 new megacities — many of which are at risk of threats including food and water insecurity, ...

Reducing emissions in a few of the world’s most populous cities could have an outsized impact on climate change. In 2050, 2.5 billion more people will live in cities than do today. As the world grows ...

HONOLULU, Hawaii -- In one city block, future Soldiers could find themselves in an intense gunfight with enemy militants. In another, Soldiers might crawl through debris to rescue trapped residents or ...