For CO₂ to produce a global warming of between 2C and 5C,climatic models predict that the concentration of this gas must also increase in the atmosphere: A) chlorofluorocarbons (CFCs) B) nitrous oxide (N₂O) C) water vapor (H₂O) D) ozone (O₃)

Question

Quizplus · Accepted Answer

CO₂ is carbon dioxide, which is a greenhouse gas that contributes to global warming. The concentration of greenhouse gases in the atmosphere traps heat and causes the Earth's temperature to rise. While all of the options listed are greenhouse gases, water vapor is the most abundant and significant greenhouse gas, responsible for roughly 60% of the warming effect of all greenhouse gases. Therefore, an increase in the concentration of water vapor in the atmosphere would contribute to the predicted global warming. The other options, CFCs, nitrous oxide, and ozone, have higher global warming potentials than CO2, but they are present in much lower concentrations in the atmosphere.

For CO2 to Produce a Global Warming of Between 2C

For CO₂ to Produce a Global Warming of Between 2C