Selasa, 15 Mei 2012
5/15/2012 09:21:00 PM | Posted by Maria Bethsy Ersalina | Edit Entri
Global warming is one of the most serious challenges facing us today. Global warming is basically the increase in the temperatures of the Earth's atmosphere, land masses and oceans. The Earth's surface temperature is at an average of 59F and over the last hundred years, this figure has risen to about 1F. By the year 2100, the average change in the temperature of the Earth could range from 2.5F to about 10F, enough to melt glaciers and polar ice caps.
The cause of global warming Global warming has and will always occur naturally.it has become such a concern in our lifetime is due to the fact that human activities and practices have contributed significantly to its occurrence and severity. Tropical deforestation is the largest source of emissions for many developing countries, but slowing deforestation can't solve the climate problem by itself.Other human practices that contribute to global warming is the agricultural revolution has also contributed to global warming. As more and more communities need lands converted from forests to residential and commercial areas, biomass is reduced, contributing to the increase in the presence of carbon dioxide in those regions. Since carbon dioxide is processed by plants and trees, their absence contributes to its increase.
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