Global Warming Essay

Literature Review
Global warming is described by climate scientist as a phenomenon that contributes to increase of temperature which is near the earth surface as well as in the oceans which started in the mid-twentieth century and its has been projected to be a continuing process. Assessment done by intergovernmental panel on climate change has shown that global service temperatures has been increasing and its attribute to various reasons which include: increasing concentrations of the greenhouse gases which are caused by the human activities like the burning of fossil fuel and deforestation (Mintzer, 129). The green house gases; nitrous oxide, methane, carbon dioxide and water vapor, which traps the heat and like from the sun in the earth atmosphere which in turn serve to increase the temperatures which affects humans, animals and plants. Interruptions resulting from climate change when tolerance level of the living organisms is exceeded leads to death e.g. extreme high and low temperatures causes extinction of less tolerant species.
Global warming as been argued to result to a rise in the global temperatures which in turn leads to a rise in the sea level as well as altered patterns of precipitation thus expansion of the subtropical deserts. In addition to that the change lad to retreating of the glaciers, sea ice and the permafrost in the polar regions, increase of extreme weather events like cyclones, erratic rainfall and dry spells, extinction of species and changes in the agricultural yields hence affecting human survival. Finally the rising atmospheric carbon dioxide leads to more acidic oceans a phenomenon predicted by climate scientists to continue.
Projections derived from climate models indicate that the global surface temperature is going to rise further during the 21st century. These projections are marred with uncertainties as estimates from these models were obtained from models with differing sensitivities to greenhouse gas concentrations and use...