Why planting trees alone won’t save Indian cities from heatwaves
GS3Economy · S&T · Environment · Security· Climate change & international agreements· Mains·
Why in news
Expert Jasmit Singh Arora advocates for a multi-layered urban vegetation strategy (trees, shrubs, and ground cover) to combat rising urban heatwaves in Indian cities.
Background
Urban vegetation can reduce surface temperatures by up to 12°C through shading and evapotranspiration. A layered planting approach is estimated to more than double the cooling benefits compared to single-layer tree planting.
Facts for Prelims
- S&TEvapotranspiration: The process by which water is transferred from the land to the atmosphere by evaporation from the soil and by transpiration from plants.
- FactUrban vegetation can reduce surface temperatures by up to 12°C.
- PlaceAhmedabad, Kolkata, and Guwahati are cited as locations implementing urban vegetation for heat mitigation.
For Mains
Q. Analyze the limitations of traditional afforestation in mitigating the Urban Heat Island (UHI) effect and discuss the necessity of multi-layered urban vegetation strategies.
Dimensions to cover in your answer
- Ecological efficiency: Multi-layered vegetation maximizes evapotranspiration and shade density compared to isolated tree planting.
- Urban planning bottleneck: Competition for limited horizontal space in dense cities for diverse vegetation types.
- Micro-climate management: Strategic replacement of heat-absorbing pavements with ground cover to reduce surface heat flux.
Keywords: Urban Heat Island · Evapotranspiration · Micro-climate · Urban Planning · Climate Adaptation
More Environment & Ecology notes
- 18 years on, Sariska’s tiger reintroduction pushes Centre to act on big cat-deficient reserves · 28 June 2026
- Delhi heatwave, Not 51 Degrees Celsius, But Feels That Hot: What's Behind Delhi's Heat · 28 June 2026
- Forest squads battle rise in illegal adventure trips in protected forests in Malabar region · 27 June 2026
- Protecting elephants helps safeguard India’s forests as powerful carbon stores: Study · 27 June 2026
- Athirappilly charts biodiversity-led path to sustainable development · 27 June 2026
- Full restoration of safaris in Bandipur and Nagarahole tiger reserves · 26 June 2026
Something wrong, or something missing?
Spotted a mistake in a note, or want a topic, format or PDF that would help your preparation? Write to us. We read every mail and fix errors fast.
This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.