Human actions have altered the global carbon cycle by _____.

Question

Quizplus · Accepted Answer

All of these actions have contributed to the alteration of the global carbon cycle. Decreasing the number of photosynthetic organisms reduces the amount of carbon dioxide that is naturally removed from the atmosphere during photosynthesis. Cutting down large numbers of trees also reduces the amount of carbon that is taken up and stored by forests. Inventing the internal combustion engine and burning fossil fuels releases large amounts of carbon into the atmosphere that had been previously stored underground. Finally, developing and using drilling and mining methods to access previously inaccessible fossil fuel deposits has led to increased extraction and burning of fossil fuels, further adding carbon to the atmosphere.

Human Actions Have Altered the Global Carbon Cycle by _____