Climate Change and Biodiversity: A Review on Understanding the Global and Local Impacts of Warming on The Ecosystems

Some living organisms have been eliminated in some ecosystems, while some diseases have recently been caused due to extreme climate changes nowadays which have been affected by greenhouse gases which disturb the ecosystems. To an extent, the temperature of Earth's planet has increased markedly over the last 100.000 years.  This increment can strongly affect the normal existence of a large number of living beings such as animals, plants, and microorganisms. Human life span has been decreased due to the harsh conditions in ecosystems and as one of the consequences of global warming; besides the pathogens, like bacteria, viruses and parasites, have become more resistant to disinfectants and to novel antimicrobial agents much more than before. The production and cultivation of some crops and numerous plant species become harder as a result of high salinity and decreases rainfall. Since 2007, forestation and drought have been the most obvious manifestations in many countries, especially in Iraqi lands leading to the migration of people and some animals like birds away from them. Cattle and some animals like deer and fish have been in a limited number tending to extinction in some Iraqi areas. This review has been prepared to document the global and local impacts of climate change on biodiversity.