Cities

Montgomery, Alabama, touts itself as the birthplace of the U.S. Civil Rights Movement. But although Montgomery now embraces its history of bus boycotts and protest marches, it remains one of the most segregated U.S. cities, and still struggles with racial inequality. Today, Montgomery’s population is almost 60% Black. The poverty rate among Black residents is 30.8%, compared to 10.6% among white residents. The city’s infrastructure is deteriorating, and its tax base is shrinking. Cities with histories of segregation tend to suffer more from systemic racism that remains in the veins of their planning laws and policies. As a scholar of urban design and planning, I wanted to know more about how Montgomery’s history affected access to parks and public spaces there. My research explains how the city’s history still influences modern planning and creates unequal access to parks. Racial inequality is deeply embedded in MontgomeryR...

Since the 1940s, there has been a broad shift away from public transit across the U.S., and service has declined in many cities, including New York, Boston, Denver, Orlando and St. Louis. A look back at the last national mass transit boom helps explain the challenges that confront modern transit agencies. Starting in the 19th century, transit companies worked closely with real estate developers to develop “streetcar suburbs” for a growing population. The companies kept fares low, thanks to corporate consolidation, government regulation and thrifty management. During World War II, producing weapons and supplies for troops fighting abroad became the nation’s top priority. Gasoline, tires and autos were strictly rationed, so most commuters had few ways to get to work other than public transit. In Baltimore, for example, people could ride a streetcar anywhere in the city in 1943 for 10 cents. With wartime production booming, the city’s Baltimore Transit C...

As intense heat breaks records around the world, a little-reported fact offers some hope for cooling down cities: Under even the most intense periods of extreme heat, some city blocks never experience heat wave temperatures. How is this possible? Civilizations have recognized the power of cities to heat themselves up and cool themselves for centuries. City architects in ancient Rome called for narrowing streets to lessen late afternoon temperatures. Narrow streets were found to cool the air by limiting the area exposed to direct sunlight. The whitewashed architecture of the Greek Isles demonstrates another long-practiced strategy. Light-colored walls and roofs can help cool cities by reflecting incoming sunlight. Whitewashed buildings on the Greek island of Folegandros help deflect the heat rather than absorbing it. Etienne O. Dallaire via Wikimedia, CC BY In hot and humid regions of the southern...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. My parents said the planet is getting too hot for people to live here. They called it climate change. What does that mean? – Joseph, age 12, Boise, Idaho Many countries have seen extremely hot weather lately, but in most of the inhabited world, it’s never going to get “too hot for people to live here,” especially in relatively dry climates. When it’s hot outside in dry places, most of the time our bodies can cool off by evaporating water and heat from our skin as sweat. However, there are places where it occasionally gets dangerously hot and humid, especially where hot deserts are right next to the warm ocean. When the air is humid, sweat doesn’t evaporate as quickly, so sweating doesn’t cool...

It took a global pandemic to convince American businesses that their employees could work productively from home, or a favorite coffee shop. Post-COVID-19, employers are struggling to find the right balance of in-office and remote work. However, hybrid work is likely here to stay, at least for a segment of workers. This shift isn’t just changing lifestyles – it’s also affecting commercial spaces. Office vacancy rates post-COVID-19 shot up almost overnight, and they remain near 20% nationwide, the highest rate since 1979 as tenants downsize in place or relocate. This workspace surplus is putting pressure on existing development loans and leading to defaults or creative refinancing in a market already plagued by higher interest rates. Office tenants with deeper pockets have gravitated to newer and larger buildings with more amenities, often referred to as Class A or “trophy” buildings. Older Class B and C buildings, which often have fewer amenities o...

“Can you name the truck with four-wheel drive, smells like a steak, and seats 35?” Back in 1998, “The Simpsons” joked about the Canyonero, an SUV so big that they were obviously kidding. At that time, it was preposterous to think anyone would drive something that was “12 yards long, two lanes wide, 65 tons of American Pride.” In 2024, that joke isn’t far from reality. And our reality is one where more pedestrians and bicyclists are getting killed on U.S. streets than at any time in the past 45 years – over 1,000 bicyclists and 7,500 pedestrians in 2022 alone. Vehicle size is a big part of this problem. A recent paper by urban economist Justin Tyndall found that increasing the front-end height of a vehicle by roughly 4 inches (10 centimeters) increases the chance of a pedestrian fatality by 22%. The risk increases by 31% for female pedestrians or those over 65 years, and by 81% for children. It’s hard to argue with physics...

Nearly two-thirds of U.S. households have at least one pet. More than ever before, companion animals are a part of life – particularly in cities, where the majority of Americans live. Cities offer access to many resources, but often it’s not distributed evenly. Some scholars describe parts of U.S. cities with few or no grocery stores as food deserts. Others have identified zones they call transit deserts, where reliable and convenient public transit is scarce or nonexistent. While the “desert” framing is controversial, there is little disagreement that access to goods and services in many U.S. cities is unequal. I have studied urban animal welfare issues for the past 15 years, and I have found that the inequities and economic stress humans face affect animals as well. Recently, University of Nebraska geographer Xiaomeng Li and I explored access to animal welfare services in Detroit. We found that pet resources were significantly more likely to be loca...