Major cities of India are becoming vulnerable to flood conditions. Discuss. (UPSC 2016, 13 Marks, )

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India, with its rapidly growing population and urbanization, is facing an increasing vulnerability to flood conditions in its major cities. This issue arises due to various factors such as inadequate drainage systems, encroachment of water bodies, climate change, and poor urban planning.

Thinkers’ views on Urban Floods

•   Shubhagato Dasgupta: Urban floods as a result of poor urban planning and infrastructure. He calls for integrated urban planning, improved infrastructure, and sustainable water management practices to mitigate urban floods.

•   Jeroen Aerts: Urban floods as a consequence of climate change and inadequate risk management. He advocates for a combination of structural measures (e.g., flood barriers) and non-structural measures (e.g., early warning systems) to reduce urban flood risks.

The vulnerability of major cities in India to flood conditions

1. Urbanization and encroachment:

•   Rapid urbanization and encroachment of natural water bodies like rivers, lakes, and wetlands have reduced the capacity of cities to absorb excess rainfall.

•   Example: In Chennai, the encroachment of water bodies led to severe flooding in 2015, causing significant damage and loss of life.

2. Inadequate drainage systems:

•   Many cities lack proper drainage systems to handle heavy rainfall, leading to waterlogging and subsequent flooding.

•   Example: Mumbai experiences frequent flooding during monsoons due to its outdated drainage infrastructure.

3. Climate change and extreme weather events:

•   Climate change has resulted in more intense and unpredictable rainfall patterns, increasing the risk of floods in cities.

•   Example: In 2019, heavy rainfall in Pune caused severe flooding, leading to the evacuation of thousands of residents.

4. Deforestation and loss of green spaces:

•   Deforestation and the loss of green spaces in cities reduce the natural absorption of rainwater, exacerbating flood risks.

•   Example: Bengaluru witnessed severe flooding in 2020 due to the rapid loss of its green cover.

5. Poor urban planning and land use:

•   Unplanned urban development and improper land use practices contribute to the vulnerability of cities to floods.

•   Example: Delhi's unplanned expansion has resulted in the destruction of natural drainage channels, leading to frequent flooding, e.g. recent 2023 floods.

6. Lack of flood preparedness and early warning systems:

•   Many cities lack adequate flood preparedness measures and early warning systems, making it challenging to respond effectively to flood events.

•   Example: Kolkata faced severe flooding in 2007, highlighting the need for improved flood preparedness and early warning systems.

7. Infrastructure overload:

•   The increasing population and inadequate infrastructure in cities strain the existing systems during heavy rainfall, leading to flooding.

•   Example: Bengaluru's outdated stormwater drainage system struggled to handle the heavy rainfall in 2017, causing widespread flooding.

8. Poor waste management:

•   Improper waste disposal and clogged drains contribute to the flooding of cities during heavy rainfall.

•   Example: In 2013, the improper disposal of waste in Srinagar led to the blocking of drains, aggravating the flood situation.

Efforts to address the vulnerability of major cities in India to flood conditions require a multi-faceted approach. As climate change continues to impact weather patterns, proactive measures are crucial to mitigate the devastating effects of floods on urban centers.