Climate change; emerging and Intensification of pervasive international security crises

A set of factors with a focus on human in recent centuries has caused the global geographic space experience major changes in various aspects, such a change that its outcome and result is the change in climate of the world. Climate change has various consequences for the world that among the most important in international security domain. In this regard, the present study employing a descriptive-analytical method, seeks to review this consequences. The results show that the security, especially international security, is so much under influential of the climate change, because climate shape the characteristics and functions of geographical spaces of the world. Therefore, the relative stability and order of the world and its countries has been due to its climate stability over recent decades, and if changes are made, instability and insecurity will prevail and will create or exacerbate various threats. It should say, the biggest and most dangerous threat of current and future of the earth is climate change and its consequences are far more than any war. The most important challenges of climate change for international security include: Endangering the all or part of territory of the coastal and island states, creation and intensification of international instability and insecurity, emerging and spreading of terrorism and extremism, creating or exacerbating of maritime boundaries disputes, weakening of the maritime security, creating and exacerbating of international migration and water crises, creating or expanding weak and fragile states, changing the geopolitical position and importance of some of the important regions of the world, the threat of international trade, increased international competition and so on. It is worth noting that, climate change is shaping some new maritime routes and creates opportunities for some regions and countries of the world, especially the Arctic.