Atmospheric temperature will rise by 7 to 10 degrees by 2050
The atmospheric temperature owing to climate change will threaten the very existence of the human race by 2050, said P. Ravichandran, Professor of Plant Biotechnology, Sri Paramakalyani Centre for Environmental Sciences, Alwarkurichi.
Addressing the southern zone agro-climatic workshop at St. Xavier’s College here on Thursday, Dr. Ravichandran said that the atmospheric temperature that had already increased by 2 degree Celsius in the past 150 years, would rise by 7 to 10 degrees by 2050 owing to various factors already affecting the environment.
The callous exploitation of resources in an unsustainable fashion, massive deforestation and unabated carbon emission had depleted the ozone layer. The heat radiated by the earth was being sent back leading to rise in temperature. Consequently, abnormal and highly harmful episodes such as acid rain were being witnessed in several parts of the world, he said.
He warned that the carbon level in the atmosphere would rise to 400 parts per million in 2033 in India. Several wet lands across the country will vanish as level of precipitation, particularly in Tamil Nadu, would come down drastically. Incidents of birth of children with physical deformities owing to pollution would increase in the coming years, he said.
“The rise in atmospheric temperature gradually eliminates several species. Whenever a species vanishes from earth, more than 150 other animals associated with these plants or animals would also perish.
Though everyone has realised this fact, nothing concrete has been done to check this threat, which is very likely to trigger the outbreak of mysterious diseases. If the counter measures cannot completely put an end to this problem, it will at least slow it down. Or else, it will be the start of the fall of the human race,” Dr. Ravichandran warned.
M.A. Haniffa, Director, Centre for Aquaculture Research and Extension, St. Xavier’s College, and an expert in freshwater murrel culture, said that climate change and pollution had not spared the coastal zone ecosystem. It had seriously affected the population of marine organisms, including the coral reefs.
He appealed to self-help groups to start murrel culture in their areas to augment their revenue and uplift the rural economy.
District Forest Officer C.H. Padma, who inaugurated the workshop, said that increasing forest cover outside the reserve forest areas was not possible as the holdings were owned by individuals. They could plant as many trees as they could in their land as it would be an effective step in neutralising the adverse impact of climate change caused by global warming, the officer said.
Farmers, members of self-help groups and representatives of non-governmental organisations participated in the workshop which will forward its findings and recommendations to the State and Central governments for appropriate action.