Times of India: In the city to participate in the golden jubilee celebrations of the Geological Society of India, French scientist G De Marsily spoke to The Times of India on issues that will hit us hard in the coming days. Marsily is a professor at the University of Paris and French Academy of Sciences. He specializes in hydro-geology and has done extensive research on water issues related to climate change. Excerpts: What impact could climate change in India have on water? The impact of …