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Small Rivers Rage: Climate Change Fuels Floods
4 Oct
Summary
- Mandakini river breached 2003 flood level records.
- Intense rainfall, floodplain encroachment cause devastation.
- Climate change increases rainfall intensity, river response.
This past monsoon, the Mandakini river in Uttar Pradesh's Chitrakoot recorded its highest flood level, exceeding the 2003 record. Approximately 7 km upstream in Madhya Pradesh, the same river also broke its previous high, highlighting a widespread issue. The floods caused extensive damage, inundating shops, sweeping away a bridge, and disrupting rail and road traffic.
Experts attribute these unusually severe floods in smaller rivers to a combination of factors. Exceptionally intense rainfall during short periods, exacerbated by climate change, causes rapid surges. This is compounded by decades of human intervention, including encroachment on floodplains and the loss of natural water storage areas like ponds and wetlands.
The science indicates that a warming atmosphere holds more moisture, leading to more intense, short bursts of rain rather than spread-out monsoon showers. This increased intensity overwhelms smaller river catchments, which respond more rapidly than larger river systems. The consequence is a higher risk of flash floods impacting communities.
