A warmer climate A cooler climate Lower relative humidity More ozone in the atmosphere
I gave my students this multiple choice question: The burning of fossil fuels has increased the carbon dioxide content of the atmosphere. What is a possible effect that the increased amount of carbon dioxide is likely to have on our planet?

Only one answer is correct among these 4 choices:
- A warmer climate
- A cooler climate
- Lower relative humidity
- More ozone in the atmosphere

Could you tell me which one is correct?

A warmer climate