By Andrew Coughlin, OMAHA, Neb. – As summer temperatures rise, so do concerns about the uneven way heat is distributed across Omaha. Experts say a growing number of neighborhoods are experiencing what’s known as the urban heat island effect—a phenomenon where certain parts of the city become significantly hotter than surrounding areas due to human development, like asphalt roads, rooftops, and a lack of tree cover.
Urban areas with lots of pavement and little greenery absorb heat during the day and release it slowly at night, making it harder for these neighborhoods to cool down. Data from UNMC heat-mapping studies show that areas in North and South Omaha, where tree canopy is often sparse and impervious surfaces dominate, can be up to 7°F warmer than greener, more shaded parts of the city.
That extra heat isn’t just uncomfortable – it’s dangerous. According to the Douglas County Health Department, prolonged exposure to extreme heat can lead to serious health issues, including heat exhaustion, heatstroke, and even death. Vulnerable populations, including seniors, children, and those without access to air conditioning, are especially at risk. It’s quickly becoming both a climate and public health issue in Omaha and surrounding areas.
In response, Omaha city planners, environmental nonprofits, and community groups are ramping up efforts to cool things down. Projects include planting thousands of new trees, encouraging reflective “cool roofs,” and expanding green space in underserved neighborhoods. Organizations like Keep Omaha Beautiful and The Nature Conservancy in Nebraska are also working on community education campaigns to raise awareness about heat vulnerability and empower residents to act.
With climate change expected to bring more extreme heat days to the region, experts warn that now is the time to make the changes necessary to mitigate UHI and its effects.
To see how your neighborhood is affected by urban heat, or to learn how you can get involved in local cooling efforts, you can visit the NWS website to find out more.
