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?

Answer 1

Human-made greenhouse gases, such as fluorocarbons, are generally more difficult to control and eliminate because they are entirely human-caused and do not have natural sources that can be easily controlled. On the other hand, natural greenhouse gases, such as water and carbon dioxide, have natural sources that are difficult to control, but their emissions can be reduced by human actions such as reducing fossil fuel emissions and deforestation. Methane emissions, which are both natural and human-made, can be reduced by controlling human activities such as agriculture and waste management. Overall, reducing human-made greenhouse gas emissions is more difficult than reducing natural greenhouse gas emissions.