Significant increase in monsoon rainfall in Western Ghats over past 800 years: study, Pg 7

Key Highlights

Historical Rainfall Trend in Western Ghats

• Study by Central University of Kerala finds a significant rise in monsoon rainfall over 800 years.

• Analysis based on lake sediments from Cheppandikere Lake (Madikeri, Karnataka).

• Data reconstruction covered the past 1,600 years to track long-term monsoon intensity trends.

Climatic Impact & Risk Factors

• Intensifying monsoon linked to more frequent and extreme rainfall events.

• Recent floods in Wayanad and Kodagu (2018, 2019) cited as evidence of climatic shifts.

Environmental & Policy Imperatives

• Highlights urgent need for:

• Disaster preparedness

• Sustainable land-use planning

• Conservation efforts in Western Ghats

• Emphasis on long-term environmental policies to mitigate increasing monsoon-related risks.

Research Approach

• Study published in Quaternary International.

• Followed a multidisciplinary methodology combining geology, climate science, and environmental analysis.

Analysis & Way Forward

• The intensification of monsoon over centuries poses long-term ecological and disaster risks in eco-sensitive zones like Western Ghats.

• Policy responses should include integrated watershed management, zoning regulations, and climate-resilient infrastructure.

Mains Mock Question:

"Discuss the implications of increasing monsoon intensity in the Western Ghats region. How can long-term environmental planning help in mitigating disaster risks?"