Question

Some greenhouse gases, such as fluorocarbons (CFCs, HFCs, PFCs, etc.), are human-made. Others, such as water, methane, and carbon dioxide, are naturally produced. Which type of greenhouse gas (human-made or natural) is more difficult to control and eliminate? Which types are easier? In three to five sentences, provide evidence for your argument. (4 points)

Answer 1

Human-made greenhouse gases are generally more difficult to control and eliminate than naturally produced ones. This is because human-made gases are specifically designed for industrial processes and have no natural processes for their removal. In contrast, naturally produced greenhouse gases are part of the Earth's natural carbon cycle and can be absorbed by plants and oceans.

For example, CFCs were widely used in refrigeration and air conditioning systems until they were banned due to their harmful effects on the ozone layer. However, CFCs have a long atmospheric lifetime, which means that they will continue to contribute to climate change for many years to come.

On the other hand, carbon dioxide is a naturally produced greenhouse gas that is also a major contributor to climate change. However, carbon dioxide can be absorbed by plants during photosynthesis and dissolved in oceans.

Overall, while both human-made and natural greenhouse gases contribute to climate change, human-made gases are generally more difficult to control and eliminate due to their specific industrial uses and lack of natural removal processes.