Press Trust of India: Major climatic changes due to global warming would lead to disturbed rainfall patterns in the country, an eminent environmentalist said on Sunday. “The rise in global warming will lead to major changes in rainfall patterns. In essence rainfall will decrease and become more erratic, said R K Pachauri, chairman of Intergovernmental Panel on Climate Change. According to the noble laureate, global warming is happening at a very steep rate and its implication for South Asian …