Serious concerns regarding rising temperatures along Odisha's coastal region have been raised by a recent study conducted by experts at the Odisha University of Agriculture and Technology (OUAT). According to the study, unrestrained urbanisation and a decline in green cover have caused a notable rise in land surface heat over the previous 20 years.
According to the study, between 2000 and 2020, maximum temperatures rose by about 3°C while minimum land surface temperatures in a number of coastal districts soared by more than 5°C. This demonstrates the region's growing urban heat crisis.

Heat Accumulation in Quickly Expanding Coastal Areas
The east and southeast coastal plain zone of Odisha, which includes districts like Khordha, Puri, Kendrapara, Jagatsinghpur, and Nayagarh, was the subject of the study. The researchers monitored notable shifts in vegetation patterns and land use using satellite photos gathered over a number of years. According to their research, the percentage of urban built-up regions increased from 21.5% in 2000 to around 40% by 2020.
The area's thermal equilibrium has been significantly impacted by the quick transformation of natural landscapes into roads, concrete buildings, and commercial areas.

Growing Heat and Diminished Green Cover
The dramatic drop in forest and vegetation cover is among the most concerning findings. According to the study, the study area's forest cover decreased from roughly 34% in 2000 to 19% in 2020. The natural cooling ability of the area has been degraded, according to environmental specialists.
In an interview with The Times of India, Sailabala Padhi, a former head of the Centre for Environment Studies, stated that "replacing open land and vegetation with built-up surfaces traps heat and prevents temperatures from cooling down, especially during evenings and nights."

Growing Pressure on the Bhubaneswar-Puri Urban Corridor
One of the areas most impacted is the rapidly expanding metropolitan corridor between Bhubaneswar and Puri. Land transformation in this area has intensified due to rapid population increase, extensive infrastructural projects, building motivated by tourism, and growing real estate.
Environmentalists caution that if this pattern persists, heat stress may become a serious public health concern, especially during Odisha's hotter summer months.
The Perils of Increasing Minimum Temperatures
Particularly concerning is the rise in minimum temperatures. Higher nighttime temperatures make it more difficult for land surfaces to cool off, which prolongs heat retention and makes inhabitants' thermal discomfort worse.
The urban heat island effect is evident from this. According to urban climate specialist Diptesh Nanda, cities are no longer sufficiently cooling after sunset.

Urban Heat Crisis Mitigation: Prospects for the Future
Urban planners and climate experts have recommended a number of quick fixes to stop the rising temperatures:
Increase Urban Green Spaces: Conduct extensive plantation campaigns, rebuild urban forests, and preserve the current tree cover.
Encourage Cool Infrastructure: In urban development, use permeable pavements, heat-resistant building designs, and reflective roofing materials.
Preserve Wetlands and Open Spaces: Wetlands and open spaces should be protected because they function as thermal buffers.
Control Urban Sprawl: Stricter land-use planning should be implemented, and building in environmentally sensitive regions should be restricted.
Create Heat-Resilient City Plans: Incorporate heat-reduction tactics into local development guidelines.

A Warning for the Future

The findings from this study should serve as a wake-up call for policymakers. If immediate corrective actions are not taken, Odisha’s coastal cities could face worsening heatwaves, reduced livability, and growing pressure on energy, health, and water resources in the coming years.