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?Aerosols a threat to climate?

AS AEROSOLS are billed as the most frightening scourge for environment in days to come, scientists unanimously assert the need for collective studies and development of technologies to curb the effect of air pollutants upsetting the climatic cycle in India and the world alike.

india Updated: Nov 11, 2006 00:52 IST

Scientists underline need for tech to check air pollution

AS AEROSOLS are billed as the most frightening scourge for environment in days to come, scientists unanimously assert the need for collective studies and development of technologies to curb the effect of air pollutants upsetting the climatic cycle in India and the world alike. (Aerosol is short for aerial solid meaning tiny particles of solid or liquid suspended in a gas or atmosphere)
Secretary in the Union Ministry of Earth Sciences Dr PS Goel after inaugurating a two-day national workshop on “Aerosols and its impact on climate with special reference to Indo-Gangetic plains” at the Indian Institute of Technology here on Friday said the aerosol deposit in the atmosphere was bound to become grim and might contribute heavily to global warming.

Dr Goel said the government sensing the gravity of problem had created a new ministry for earth sciences with the sole purpose of integrating various branches of different sciences to study the formation of the aerosols, and to develop the techniques to check their formation for a healthy environment. Though aerosols were the result of the activities carried out in the process of achieving a high development rate throughout the globe, these activities could not be suspended to eliminate the creation of aerosols at the cost of the development. However, technologies and other methods could easily be evolved to bring down their rate to a level tolerable to the human existence, he added.

Citing certain studies, he said the consumption of hydrocarbons would rise 4.5 times of the existing consumption by the year 2031 and would pose a serious threat to the environmental pollution if no strategy was prepared to check the adverse effect on the quality of life and climatic cycle.

The rise in aerosols might lead to intensified global warming, erratic rains and unpredictable winters and summers.

Similarly, he said the time was not far when people might face the acute scarcity of potable water due to high consumption of water by the growing population.

As of today a rich person required at least 130 litres of water per day against very little water requirement by the poor persons. With the rise in the living standards the demand for water would also grow and it would become necessary to promote water management, he added.

Speaking on the occasion IIT-K Director Dr S G Dhande said that scientists should not only provide the data or the results of the growing pollutants but they should come forward with proposals to check the pollution menace. They should develop technologies and systems to curb the aerosol effects.

Coordinator of the workshop Dr RP Singh referring to studies conducted by the Forest Research Institute said that pollution in the Indo-Gangetic plain was so high that various tree species were on the verge of extinction. He said that the “AERONET Centre” at the IIT-K had recorded a high concentration of aerosols in the Ganga basin.