Posted by If you’ve followed this blog for any length of time, you know a significant number of posts are a direct result of seeing misnomers in response to urbanist social media outlets. One of the most egregious and repeated examples of this is the person who believes that suburban living is better for nature than urban living. This could not be further from the truth.
When comparing cities to suburbs, it’s clear that the dense, compact nature of urban areas leads to a more sustainable lifestyle. The key difference lies in the per capita environmental footprint, which is consistently lower for city dwellers across several crucial metrics.
Land Use and Habitat Preservation
Urban density is the single most effective tool for preserving natural land. Instead of sprawling outward and converting forests, wetlands, and agricultural land into low-density housing and strip malls, cities grow upward. A study published in the journal Environmental Science & Technology found that U.S. households in more sprawling, suburban areas have a significantly larger carbon footprint than those in urban centers, largely due to land use and associated transportation. This is a fundamental trade-off: every acre of land developed in the suburbs is an acre of potential habitat lost. By concentrating millions of people into a smaller geographic area, cities act as a kind of human container, leaving vast tracts of land undisturbed. This not only protects biodiversity but also preserves the critical ecosystem services these natural areas provide, such as clean air and water filtration.
Energy Consumption and Efficiency
The compact design of cities directly translates to lower energy use. Dwellings in cities, like apartments and townhouses, require less energy to heat and cool because they share walls and are generally smaller than suburban single-family homes. A 2017 study in the Proceedings of the National Academy of Sciences found that as urban population density increases, the dwelling size per capita tends to decrease, which in turn leads to lower per capita energy use for heating and cooling. For example, a shared-wall apartment in a high-rise building loses far less heat in the winter than a large, detached house with four exposed walls and a roof. Beyond the home, cities can implement more efficient, large-scale systems, like district heating and cooling, which serve multiple buildings from a single plant, further reducing overall energy consumption.
Transportation and Emissions
Transportation is one of the largest contributors to the carbon footprint of suburban residents. The car-centric design of the suburbs makes driving a necessity for nearly every trip, from commuting to work to buying groceries. This reliance on personal vehicles leads to significantly higher per capita emissions. In contrast, cities with robust public transit networks, like subways, buses, and light rail, offer viable, low-carbon alternatives. For instance, a study of U.S. metropolitan areas by Harvard researchers found that central-city residence is consistently associated with lower levels of emissions. In places like New York, the difference is stark, with suburban development causing hundreds of dollars more in carbon emissions damage per household than central city living. The simple ability to walk, bike, or take a short bus trip for daily errands, rather than getting into a car, drastically reduces a person’s carbon footprint.
My Two Cents
Every time I bike to work I see deer, hawks, turkeys, rabbits, geese and more. More than half of my route features a trail through nature, which is a truly lovely way to start the day. Recently, a major construction project has cleared a tremendous amount of space and trees along this trail. The amount of forest space for the deer I often see has been significantly depleted. As far as square footage, most of this development will be parking lots.
It’s a reminder to all of us that, when we see deer, we are not experiencing nature, we are infringing upon it. The planet is healthier where humans are not present. Dense urban living may seem at odds with nature, but in reality it ensures that people take up less space, thus allowing the natural ecosystem outside of our cities to thrive unencumbered.