The amount of carbon dioxide present in the atmosphere has increased since the late 1800s. A lot of this has been traced to the burning of fossil fuels, such as oil and coal. There has been a noticeable upward trend in the earth’s average temperature.
Photo: NASA
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Photo: NASA
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How will this affect the earth? One of the effects may lead to increased melting of earth’s ice. As this ice melts, it will raise ocean levels.
Photo: NASA
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