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The environmental sciences essay below has been submitted to us by a student in order to help you with your studies.
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3. Environmental Sciences
4. The Causes And Eﬀects Of Climate Changes Environmental Sciences Essay
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The Causes And Eﬀects Of Climate Changes
Environmental Sciences Essay
The earth climates nowadays is changing very rapidly and diﬀerently. Besides that, the climate changes in our earth are aﬀecting our lives psychologically, physically and emotionally. What is climate change? Climate change is the seasonal changes for a long period of time in the world. These climate patterns play an important role in shaping natural ecosystems, and the human economies and cultures that depend on them. For example, the changes in climate can aﬀect how people, plants and animal live, such as food production and health risks. As the earth's climate is dynamic and always changing through a natural cycle, the world is now worried about the changes that occurring today have been speeding up and seriously aﬀecting human's lives. All across the world, people are taking action to prevent climate change. For example, in 2007, scientists from the International Panel on Climate Change (IPCC) predicted that warming oceans and melting glaciers due to global warming and climate change could cause sea levels to rise 7-23 inches by the year 2100. So, some islands and some small countries will be ﬂooded by the sea water and even disappeared very soon. Because of this, we must take action as soon as possible to try to solve this problem or to prevent the more serious of climate changes occur. I'm interested in this topic because the climate changes in our country or this world are too serious and it's interesting to discuss and try to ﬁx the problem. However, what are the causes and eﬀects of climate changes that aﬀecting our lives and environment?
There are two main causes of climate changes- natural causes and human activities. Natural causes have inﬂuenced the earth's climates such as volcanic eruptions, ocean current, the earth's orbital changes and solar variations. The eruptions of volcanoes cause a cooling eﬀect on the earth. When a volcano erupts it throws out large volumes of sulphur dioxide (SO2), water vapour, dust, and ash into the atmosphere. The volcano eruptions will aﬀect the climatic pattern for years although the eruptions occur in a few days. The sulphur dioxide gas will reach the upper level of the atmosphere. The tiny particles, dusts and ashes will block the incoming sun rays and this will leads to cooling at the atmosphere. This is because the bouncing of sunlight to the space is cooling the atmosphere of the earth.
Furthermore, ocean current is one of the natural cause that aﬀecting climate changes. The ocean is the major component of the climate system. The oceans cover about 71% of the earth and absorb about...
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