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The well-known environmental activist in his lecture highlighted the gradual destruction of western ghats - quarrying, deforestation,  resorts, killing of animals, etc., - which is the prime cause for the recent devastating flood in Kerala. He explained the  delicate formation of  western ghats and its unique method of preserving rain  water and releasing it to streams and rivers. It is also home to thousands of animals and birds, that are found only here.  The lecture is available in the web channel Tamil Niram.