Doha’s rapid urban development over the past three decades has significantly altered the city’s local climate, according to a recent study by Hamad Bin Khalifa University (HBKU). The research, which analyzed 30 years of satellite data, found that areas experiencing the most intense urbanisation since the 1990s have seen land surface temperatures rise by more than 7 degrees Celsius compared to Qatar’s natural desert environment. This increase is attributed not only to population growth and urban expansion but also to the Urban Heat Island effect, where built environments trap and retain heat, raising temperatures in city streets and affecting outdoor comfort levels.

This warming trend has had measurable consequences for Qatar’s electricity consumption. Over the past five years, total electricity demand has increased by 25%, a surge largely linked to climate-driven cooling requirements rather than population growth alone. In 2024, the country’s residential electricity use rose by 29% due to temperature and humidity effects captured by the Heat Index, a metric that reflects how hard cooling systems must work under combined heat and moisture conditions. Currently, 41% of summer days in the region fall into “Danger” or “Extreme Danger” Heat Index categories, presenting new operational challenges for infrastructure and residential management that were not contemplated under existing building codes.

Looking ahead, projections indicate that if current urban planning and cooling practices continue, total electricity demand in Qatar could increase by 65% by 2050. Given that approximately one-third of residential energy consumption is already devoted to climate-controlled cooling, this anticipated rise poses significant challenges for power generation capacity and complicates efforts to transition toward renewable energy sources.

Addressing this growing issue requires innovative approaches beyond traditional methods such as expanding green spaces and blue-green infrastructure, which have shown limited impact on moderating the Heat Index at scale. HBKU researchers are therefore exploring a shift in construction materials tailored to the region’s harsh climate. A key development involves integrating perlite—a naturally occurring volcanic mineral—into concrete mixtures. This new material is designed to act as an efficient thermal barrier, capturing and managing heat to reduce dependence on energy-intensive cooling.

Dr. Azzam Abu-Rayash, Assistant Professor in Sustainable Development at HBKU’s College of Science and Engineering and lead author of the study, suggests that adopting such smart materials could play a critical role in making Doha’s urban environment more resilient to heat. This innovation offers a potential pathway to mitigate rising energy demands while supporting the long-term livability of rapidly growing desert cities.

While expanding green infrastructure remains a component of Qatar’s sustainability efforts, experts emphasize that comprehensive urban redesign and material innovations are necessary to cope with the shifting microclimate challenges posed by accelerated heat accumulation in built environments. The study’s findings underscore the need to reconsider traditional models of city development in the Arabian Peninsula to balance economic growth with climate resilience.