Question

3. Looking at both plots, what do you notice about the concentration of CO₂ when the temperature was at its highest?

4. From this graph is it possible to say which rose first the carbon dioxide or the Temperature? Explain

5. What do you notice about the concentration of CO2 present?

Answer 1

3. T he highest temperature point occurs around 8,000 years ago, with a value close to 0°C.

4. CO2 concentration increased first, potentially due to natural factors like changes in Earth's orbit or volcanic activity.

5. The graph exhibits smaller fluctuations within the general upward trend, likely due to various natural factors influencing
`CO_2` levels.

3. The highest temperature point occurs around 8,000 years ago, with a value close to 0°C. At this point, the CO2 concentration is approximately 280 ppmv which aligns with the general observation that
`CO_2` concentration increases with higher temperatures.

4.

`CO_2` concentration increased first, potentially due to natural factors like changes in Earth's orbit or volcanic activity. This
`CO_2` rise then contributed to a gradual temperature increase over centuries due to the greenhouse effect.

5.

`CO_2` concentration has been steadily rising throughout the shown period, from around 200 ppmv to 280 ppmv.