Yet it has to be remembered that there is always an ‘inherent variability within the system’; so a sudden change in the weather on a particular day can’t be termed as a global variation in weather conditions. In other words, a variation in the local parameters does not pose much of an influence over the global parameters. The significance of this point comes into perspective when considering the supposedly steep rise in temperatures in city areas during the summer months of March – May. Trivandrum had recorded its highest temperature of 38 degree Celsius in the year 2007.
 
“The increase of concrete structures, the road tar, mechanical devices like air-conditioning - everything accounts for a rise in the local temperatures. Concrete structures and road tar reflect heat and the dwindling number of trees from the city streets magnify the impact many times. So in effect, a person standing exposed to the heat on the street during a hot summer day would feel like he were standing inside a hot oven. Many people come here to know about the temperature of a day that feels particularly hot, fully expecting it to breach record values. But our measurements always show a temperature that would be only normal for a hot summer day. The immense heat felt in the streets due to the heat reflected from the concrete and tar does not in any way mean that there has been a change in the general climatic conditions.”
 
The pattern of the rainfall is yet another thing that’s supposed to have undergone dramatic variations over the years. But K Santhosh states that it is just a mistake made in perception.
 

“The South West monsoon which happens during the months of June – September is characterized by carpet like cloud formations which are large and continuous. Typically, during the South West monsoon, there would be a period extending for seven to ten days followed y a lull of four to five days. But during the North East monsoon, or receding monsoon season, between the months of October- December, the cloud formation is essentially ‘cumulonimbus’ which is a locally developing cloud formation which would cover an area of only about 10 sq km and last for a maximum of 2-3 hours. That accounts for the localized showers which cover one particular area within the city while the surrounding area is dry.”
 
In conclusion it could be said the climatic conditions prevailing over the subcontinent has not undergone any significant variation to cause any alarm. But threat still persists in the form of increasing frequency of extreme weather conditions which is caused by global warming, something which no single nation can do anything about individually and which requires a global collective effort to begin with.