Today, the world is facing severe global warming and uncertain climate changes resulting in frequent natural hazards. Natural hazards carry high economic and social costs to the entire world. For this reason, various nations and the governmental agencies devote much energy to planning and mitigation actions in relation to natural and human-induced disasters. With the advent of Earth-observing sensors in orbit in association with geographic information technology (GIT), Climatologists, Environmentologists and Earth scientists have access to data and technology that can be used to assess climatic changes and dynamics of natural hazards. The impact of natural disasters such as landslides, flooding and forest fires can be lessened through effective hazard management and mitigation. The research publications integrated in this book covers several modelling approaches for various geohazards. They present new methods and approaches which support long term early warning and hazard mitigation strategies.