Written by: Saphal Subedi - 23063, Grade XI
Posted on: 09 February, 2022
Global warming is the phenomenon where earth temperature rises due to an increased amount of greenhouse gas. It is alerting our planet every year. Greenhouse gas traps heat and raises global temperature and causes Hurricanes, increases wildfire, food supply disruptions, huge smog etc. All over the world animals are under the threat of climate change. The gasses such as methane, ozone and carbon dioxide trap the incoming radiation from the sun. Greenhouse effect creates a blanket which prevents the heat from escaping back into the atmosphere.
Greenhouse effect is not bad for creatures on earth, in fact it is quite important for creatures on life on earth. Due to global warming the polar region ice caps begin to melt and rise in sea level. Greenhouse effect is caused when polar ice caps and sea ice melts. This is due to the fact the ice reflects 50% to 70% of the sun rays back to space, but without ice the solar radiation gets absorbed. Sea water reflects only 6% of the sun rays back to space. If ice melts significantly it contributes to global warming When this phenomenon goes out of control it is called the runaway greenhouse effect. This is like an apocalypse, but it is all too real. Though this has not happened in earth's history, it is speculated to have occurred on Venus. Millions of years ago Venus was thought to have an atmosphere like earth’s temperature. But due to runaway greenhouse effect surface temperatures around the Venus planet began rising. If this occurs on earth, the runaway greenhouse effect leads to many unpleasant scenarios- temperature will rise hot enough for oceans to evaporate. Once the oceans evaporate, the rocks will start to sublimate under the Heat. The cause of global warming is Volcanic eruptions are also responsible for global warming. That is to say, these eruptions release a lot of carbon dioxide which contributes to global warming. Similarly, methane gas is also one big issue responsible for global warming. After overuse of automobiles and fossil fuels results in increased levels of carbon dioxide. In addition, activities like mining and cattle rearing are very harmful to the environment. One of the most common issues that are taking place rapidly is deforestation. When one of the biggest sources of absorption of carbon dioxide will disappear, there will be nothing left to regulate the gas. Thus, it will result in global warming. Steps must be taken immediately to stop global warming and make the earth better again. When you go shopping, carry your own cloth bag instead of a plastic bag. Next step is to limit the use of electricity which will prevent the release of carbon dioxide. Deforestation must be stopped immediately and planting trees must be encouraged.
At last, all of us must realize the fact that our earth is not well. It needs treatment and we can help it to heal. The present generation must take responsibility for stopping global warming in order to prevent the suffering of next or future generations. Therefore, every little step, no matter how small, carries a lot of weight and is quite significant in stopping global warming.
