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Climate change is a serious catastrophe that can lead to dire consequences. Because children are our future, they need to know that there is such a danger. This knowledge will be as necessary as editius.com for a perfect essay.
What is global warming?
Global warming is a prolonged warming of the Earth’s climate system, which has been observed since the pre-industrial period (between 1850 and 1900). This is caused by human activity, which increases the level of greenhouse gases in the Earth’s atmosphere, mainly through using fossil fuels. Greenhouse gases retain heat and the temperature on the planet rises. The term “global warming” is related to the term “climate change”, although the latter refers to both man-made and natural warming and its effects. Most often, global warming is measured as an increase in the average global temperature of the Earth’s surface. Thus, since the pre-industrial period, this figure has risen by about 1 degree Celsius and continues to grow by 0.2 degrees Celsius every decade.
Effects of global warming
- The waters of the oceans are heating up and expanding, so the global sea level is rising. Since 1993, the average global sea level has risen at a rate of about 3 millimeters per year, but over the years this figure has increased. As a result, by 2100, the average global sea level may rise by 65 centimeters compared to 2005;
- The ice sheets of Greenland and Antarctica are rapidly losing weight. This is indicated by data from satellites that have been collecting information about these regions for several decades. Thus, Greenland lost an average of 279 billion tons of ice per year between 1993 and 2019, while Antarctica lost about 148 billion tons of ice per year. We have already written that the melting of snow in Greenland has reached a point of no return;
- Glaciers are retreating almost everywhere in the world. Data on this are collected by the World Glacier Monitoring Service. Here you can see both the global trend and statistics by region.
Is it really due to human activity?
Scientists have linked the trend of global warming to the greenhouse effect. When sunlight hits the Earth’s surface, its energy is absorbed and returned to space as heat. Certain gases in the atmosphere prevent the release of this heat, causing the planet’s surface to heat up. The higher the concentration of such gases, the more heat will be retained. The concentration of carbon dioxide, methane and nitrous oxide in the atmosphere is currently the highest in the last 800,000 years.
Human activity enhances the natural greenhouse effect. Over the last century, the burning of fossil fuels, such as coal and oil, has increased the concentration of carbon dioxide in the atmosphere. This is because in the process of burning coal and oil, carbon and oxygen combine in the air.
According to the Fifth Report of the Intergovernmental Panel on Climate Change, human activities have increased atmospheric carbon dioxide levels from 280 parts per million to 414 parts per million over the past 150 years. Researchers estimate that there is a 95% chance that man-made greenhouse gases have caused much of the rise in Earth’s temperature over the past half century.
97% of climate experts agree that it is human activity that causes global warming. These data were obtained as a result of six independent scientific studies based on the analysis of 11,944 theses of scientific papers on climate change.
Therefore, it is important that students learn more about climate change to anticipate a possible catastrophe.