Dr. Sazzala Jeevananda Reddy is an Agrometeorologist got post-graduation in Geophysics & Applied Statistics with the advanced training in Meteorology & Oceanography and numerical weather prediction. Dr. Reddy got his Ph.D. in Agricultural Meteorology from the "The Australian National University", Canberra. Dr. Reddy has a wide experience in the field of Agrometeorology and Agroclimatology while working in several National and International institutions/organizations within and outside India. Dr. Reddy served Food and Agriculture Organization [FAO] as Expert & World Meteorological Organization [WMO] as Chief Technical Advisor. The author is one of the few scientists who started his carrier in the science of Climate Change as back as early 1970s. One of Dr. Reddy's work was identified in 1976 as one of the fifteen papers of unusual interest (most of them related to the subject of climate change) Scientific Committee on Solar Terrestrial Physics of American Academy of Sciences from among the entire literature published in National and International Journals in Solar Terrestrial Physics up to that time. Dr. Reddy presented concept of adopting agriculture in long-term agriculture planning in the semi-arid tropics. In this direction Dr. Reddy brought out several books to educate World Community.