Krishnan's Blog

Global warming will lead to an intensification of the global water or hydrological cycle through increases in surface temperature and rates of evaporation, and in some regions, increases in precipitation . Changes in the total amount of precipitation and its frequency and intensity directly affect the magnitude and timing of run-off and the intensity of floods and droughts. Such changes will have significant impacts on regional water resources. It is not certain how individual water catchment areas will respond to changing evaporation rates and precipitation. It is likely however, that currently dry regions will be more sensitive to changes in climate. Relatively small changes in temperature and precipitation could cause relatively large changes in run-off. Arid and semi-arid regions will therefore be particularly sensitive to reduced rainfall and to increased evaporation. An increase in the duration of dry spells will not necessarily lead to an increased likelihood of low river fl...

The Cooum River , is the famous river which ends in the city of Chennai (formerly Madras) in India on the Bay of Bengal . The river almost bisects the city. The name of Cooum appears to be derived from Tamil Literature. The word "coovalan" denotes a person who is well versed in the science of ground water, well water and stagnant water. It is also considered to be the shortest classified river draining into the Bay of Bengal and is only about 65 km long. Its source is in a place by the same name 'Koovam' in Tiruvallur district adjoining Chennai district. History Cooum is presently a river spoiled by filth and pollution and the water quality is considered to be highly toxic and completely non-potable. As early as thirty years ago recreational boats were available for leisure boating. The Annual tourism exhibition used to take tourists in the waterways until 1985. Ancient documents from the nearby temples states 'reaching salvation' on having a dip in Cooum...