Nowadays, the earth is presenting drastic changes. There are different factors that have influenced to provoke these changes. The man is one if not the main responsible. With the modern world and its speed in which life is developed everyday, the man may not sometimes think of a long-term harm that is provoking. It has been recognized that human activity is slowly increasing the atmospheric concentration of several gases that contribute to the greenhouse effect. The greenhouse effect is the colloquial term to refer to enhanced global warming. The green house effect is what keeps the earth habitable, without the greenhouse effect the temperatures would be too cold for human live.
Over the past 100 years, global temperatures have increased by about one degree Fahrenheit, with the 1990s to date the warmest decade on record, according to NASA's Goddard Institute for Space Studies.(1)
Scientists predict that, unless greenhouse gases emissions are reduced substantially, Earth's average global temperature will rise by two to six degrees by the next century. Since people are causing global warming, they can also prevent it from getting worse or to stop it at all. To prevent global warming we must reduce usage of greenhouse gases emissions.
Carbon dioxide (CO2) is a vital source to the greenhouse effect. Humans have made buildings and machines that release CO2 into the air. Large amounts of CO2 in the atmosphere causes more heat to be kept in, causing global warming. Several scientists agree that our energy using system is one of the main CO2 producers because it comes from coal-fired power stations. We need to improve our inefficient use of energy, our choices about when and how to use energy. According to scientists we can improve energy efficiency by the following household advices: a) Turn off lights when you leave a room.
b) Buying energy- efficient appliances, such as, refrigerators, freezers, stove.
c) Replace your 3... [continues]
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