Global warming and its effect on the environmental human health

Earth s ecosystem has been active for millions of years without particular problems and may lead the development of variety of animal species around the world. The planet has become the suitable host for life because of climate variability and kind of water distribution in it. But man saved it by over nature. Conditions and balance of the Earth s environment were disrupted by concurrent with entering into the age of technology, human power and industrial communities at the same time. These problems and crisis has intensified so that prevention of severity of these changes is only choice for human. Global warming is one of these problems. Global warming as consequence of buildup of greenhouse gases without doubt is the most important environmental challenges in the world and especially the Middle East. The increase in the planet s average global temperature than the average thirty years 1990-1960 (normal climate) is called global warming.