World is Changing; unfortunately not for the better in every respect. IPCC’s Fifth Assessment Report says: Since the mid-19th century average increase in the temperature of the Earth’s surface has been 0.85 degree Centigrade. Sea level has been rising faster than at any time during the previous two millennia. Erratic rainfall, flooding, heat-waves, food and water shortages are all going to get acuter with global warming. Diseases like Dengue, Japanese encephalitis, heat stress, mental disorders, post-traumatic stress syndrome etc. are more likely to play havoc.