Investigation on Reasons and Consequences of Climate Changes in International Systems

Abstract: Stepping to second decade of third millennium makes more complex and various international systems. While time passes, three main elements of ending civil war as globalization, weakness of system and development make main changes in international systems. So, biological crisis is known as main issue of political and international topics, climate changes contain important position; because paying attention to biological matters and changes of low politics position to high positions are known as important and clear matters of universal treatments. Therefore, importance of unpleasant climate consequences derived from green-house gases; the earth warming, increasing of sea levels, decreasing of biological varieties, flooding, drought, destroying the land, insecurity of good, political and social discussions, development of poverty clear new aspects and topics in international crisis and solutions. Present study tried to use descriptive analysis and librarian method to study and answer the question why climate changes make more technical and ecological challenges in various relationships of countries. In addition, they have been tried to clear most important consequences and reasons of climate changes as green house effects in international system. Key words: Climate changes Green house gases Global warming consequences Flooding Drought Pollution INTRODUCTION reasons made the researcher to study and gather enoug