Climate refers to a long-term pattern of weather in a particular area. Temperature, humidity, atmospheric pressure, precipitation, and wind are the common meteorological variables that are measured to classify climatic conditions. The climate system has five components which include atmosphere, hydrosphere, cryosphere, lithosphere and biosphere. A location's climate is influenced by its altitude, latitude and geography along with nearby water bodies and their currents. Climate change is characterized by changes in the global and regional climates over time. It reflects variations in the atmosphere's variability or average condition over different time spans ranging from decades to millions of years. The climate is dynamic in nature and it keeps changing. Along with human activity, natural processes such as the Earth's tilt, volcanoes, comets and meteorites, continental rifts, and ocean currents can cause these changes. This book unravels the recent studies on climate change. It will serve as a valuable source of reference for graduate and postgraduate students.