According to atmospheric temperature and CO2 concentration records derived from Antarctic ice cores, Earth’s climate has undergone significant changes over the past 200,000 years. Click on the image on the right to see two graphs. The upper graph shows the variation in atmospheric CO2 concentration, and the lower graph shows the variation in air temperature. Both graphs cover the same time period from approximately 200,000 years ago up until the year 1950, which is represented as year 0 on the graphs.Describe TWO major causes for the predicted 200 ppm increase in atmospheric CO2 concentration between 1950 and 2050.
Question
According to atmospheric temperature and CO2 concentration records derived from Antarctic ice cores, Earth’s climate has undergone significant changes over the past 200,000 years. Click on the image on the right to see two graphs. The upper graph shows the variation in atmospheric CO2 concentration, and the lower graph shows the variation in air temperature. Both graphs cover the same time period from approximately 200,000 years ago up until the year 1950, which is represented as year 0 on the graphs.Describe TWO major causes for the predicted 200 ppm increase in atmospheric CO2 concentration between 1950 and 2050.
Solution
The two major causes for the predicted 200 ppm increase in atmospheric CO2 concentration between 1950 and 2050 are:
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Industrialization: The Industrial Revolution, which began in the mid-18th century, led to a significant increase in the burning of fossil fuels for energy. This includes coal, oil, and natural gas. When these fuels are burned, they release CO2 into the atmosphere, contributing to an increase in atmospheric CO2 concentration.
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Deforestation: Trees absorb CO2 from the atmosphere, so when large areas of forest are cut down for agriculture or other uses, less CO2 is absorbed from the atmosphere. Additionally, when the trees are burned or decompose, they release the CO2 they had previously absorbed back into the atmosphere. This contributes to an increase in atmospheric CO2 concentration.
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