Global Warming causes and effects

Global Warming causes and effects.

Since the late nineteenth century, scientists have observed a gradual increase in the average surface temperature planet. This heating has reduced snow-covered areas in the northern hemisphere, and has caused many of the icebergs floating in the Arctic Ocean have been melted. Recently it has also been observed how, due to the increase in temperature, large portions of Antarctic ice have been separated from the rest of the pole mass, thus reducing the size of the frozen continent. Global warming has a detrimental effect on the climate, health, agriculture and wildlife.

Global warming has caused an increase in temperature average surface of the Earth. Due to the fusion of portions of polar ice, sea level underwent a rise of 4-8 inches during the past century, and it is estimated that there will continue to rise. The magnitude and frequency of rainfall has also increased due to increased evaporation of the bodies of surface water caused by the increase in temperature. Scientists estimate that the average temperature of the Earth's surface can reach up to 4.5 º F increases during the next 50 years (2001-2050), and up to 10 º F during this century. This increase in water evaporation will result in an increase in the intensity and frequency of the hurricanes and storms. Also it will cause the soil moisture is reduced due to the high rate of evaporation, and sea level rise an average of nearly2 ft. off the coast of the Americas and the Caribbean.

An increase in the temperature of the surface of the earth will bring as result in an increase in respiratory diseases and cardiovascular, infectious diseases caused by mosquitoes and tropical pests, and prostration and dehydration due to heat. The cardiovascular and respiratory systems are affecting because, under conditions of heat, the person must exert more effort for any activity, putting more pressure on those systems. Moreover, as the tropics are extended to higher latitudes, mosquitoes and other pests responsible for dengue, malaria, cholera and yellow fever in the tropics affect a major portion of the world population, increasing number of deaths from these diseases.

Due to the evaporation of water from the ground surface and to increase in magnitude and frequency of rainfall and flooding, soils become the drier and lose nutrients more they easily be removed by the runoff. This change the characteristics of the soil, making Farmers need to be adjusting to the new conditions. The need for irrigation will be essential during times of drought; due to evaporation will be more common than at present. Temperatures more too high will drive the reproduction of some insects such as whitefly and locusts (a type of hope) that cause plant diseases and affect crop production.

Due to climate change and changes

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