Couple goals: Can economic growth finally go green?

Researchers have found that many urban economies are continuing to grow while fossil-fuel pollution declines, meaning some cities are beginning to 'consciously uncouple' economic growth from fossil-fuel dependence

Cities can reduce environmental pressures when designed effectively. Dense urban areas generally require less land, reduce transport distances, and can support more efficient public infrastructure. A well-designed city can often have a lower per-capita environmental footprint than sprawling suburban development. The challenge lies in how cities grow. Picture: iStock

For much of modern history, cities and fossil fuels have behaved like inseparable partners, like Zig and Zag, or Bono and indoor sunglasses. More people meant more traffic, more construction, more energy use and, inevitably, more pollution. Urban growth was seen as proof of economic success, but also as a guarantee of rising emissions. Now, a major new global study suggests that relationship may finally be beginning to change.

Researchers analysing nearly 2,500 cities worldwide found evidence that many urban economies are continuing to grow while fossil-fuel pollution declines. To sum up the study, some cities are beginning to “consciously uncouple” economic growth from fossil-fuel dependence. This marks a development that could reshape how we think about climate action and urban living. The study, published in Nature Cities, used satellite observations of nitrogen dioxide alongside economic growth data to assess trends in urban fossil fuel use. Nitrogen dioxide is a pollutant strongly associated with combustion from vehicles, power plants, and industry — making it a useful indicator of fossil-fuel activity.