Urbanization and regional climate change-linked warming of Indian cities

Urbanization and regional climate change-linked warming of Indian cities

June 2024 | Soumya Satyakanta Sethi & V. Vinoj
Urbanization significantly enhances warming in Indian cities, with eastern Tier-II cities leading the way. This study quantifies the urbanization-driven warming and highlights the need for targeted mitigation strategies. Urbanization, a major driver of socioeconomic change, contributes to warming through factors like higher thermal inertia, reduced albedo, and increased anthropogenic activity, leading to the urban heat island (UHI) effect. Urban areas are particularly vulnerable to climate change, with cities experiencing enhanced warming compared to the broader region. Indian cities, with a projected doubling of urban population by 2050, face significant climate risks. The study shows that urbanization accounts for up to 60% of warming in Indian cities, with urban contribution varying across regions. Cities in eastern and central India show higher urban contributions, indicating the need for tailored climate action plans. The study emphasizes the importance of systematic research into urban climate and the need for differentiated mitigation strategies. Urban planning-based measures are more effective for cities with high urban contributions, while large-scale interventions are needed for cities dominated by regional effects. The study provides data and insights to help urban planners and policymakers allocate resources effectively for climate resilience. The findings underscore the need for sustainable city planning and adaptation strategies, particularly in developing cities with high urban warming contributions. The study uses MODIS data to analyze urban and regional warming trends, highlighting the complex interplay between urbanization and climate change. The results emphasize the importance of addressing both urban and regional factors in climate mitigation strategies.Urbanization significantly enhances warming in Indian cities, with eastern Tier-II cities leading the way. This study quantifies the urbanization-driven warming and highlights the need for targeted mitigation strategies. Urbanization, a major driver of socioeconomic change, contributes to warming through factors like higher thermal inertia, reduced albedo, and increased anthropogenic activity, leading to the urban heat island (UHI) effect. Urban areas are particularly vulnerable to climate change, with cities experiencing enhanced warming compared to the broader region. Indian cities, with a projected doubling of urban population by 2050, face significant climate risks. The study shows that urbanization accounts for up to 60% of warming in Indian cities, with urban contribution varying across regions. Cities in eastern and central India show higher urban contributions, indicating the need for tailored climate action plans. The study emphasizes the importance of systematic research into urban climate and the need for differentiated mitigation strategies. Urban planning-based measures are more effective for cities with high urban contributions, while large-scale interventions are needed for cities dominated by regional effects. The study provides data and insights to help urban planners and policymakers allocate resources effectively for climate resilience. The findings underscore the need for sustainable city planning and adaptation strategies, particularly in developing cities with high urban warming contributions. The study uses MODIS data to analyze urban and regional warming trends, highlighting the complex interplay between urbanization and climate change. The results emphasize the importance of addressing both urban and regional factors in climate mitigation strategies.
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[slides and audio] Urbanization and regional climate change-linked warming of Indian cities