Tuesday, August 28, 2007

Water Resources And Environmental Problems




“Mom, today’s really hot. My skin will get burn as I get too much exposure to the sun.” That’s what my little brother always moans. “And sometimes it is going very cold.” He continues. In fact, it is so wondering. What lead to the phenomenon?...

Blame ourselves is the must instead of blaming God and it is the true answer, always being that. Every year, vast areas of forests are cleared for the purpose of agriculture and development. All such green ‘creatures’ are thoughtlessly being harvested, ignoring the oncoming long term impacts. Tropical rainforests play important ecological roles. They house almost half of the world’s flora and fauna with many unique species which produce a large amount of oxygen and food we daily eat. Plants are also called the ‘carbon sink’ of the Earth because they absorb vast amounts of carbon dioxide during photosynthesis and at the same time release oxygen in the atmosphere.Then the lack of plants would lead to an increase in the carbon dioxide level in the atmosphere.

As such deforestation disrupts normal weather patterns, creating hotter and drier weather and causing global climatic changes. Scientifically, carbon dioxide emitted by living things can absorb vast amounts of heat from the sunlight. When sunlight enters the earth’s atmosphere, some of its solar radiation is reflected back to space. However, the radiation is not totally out of space as most of the radiation remains trapped as well as absorbed by carbon dioxide, one of the greenhouse gases. The greater the quantity of carbon dioxide in the atmosphere, the greater the heat will be absorbed. Consequently, this may warm the surface of the land and sea, contributing to an overall rise in the average temperature of the Earth’s atmosphere. The increase in atmospheric temperature is high enough to cause changes in the global climate, namely global warming.


No comments: