Question

For an example of the second view, assume that you know that the area of Arctic sea ice is 6.0 million km2
. Using the graph, estimate the likely total carbon dioxide release:

A. 400
B. 900
C. 1100
D. Graph doesn't show
E. 850

Answer 1

To estimate the likely total carbon dioxide release using the graph, we need to find the corresponding point on the graph where the area of Arctic sea ice is 6.0 million km2. Looking at the graph, we can see that at the point where the area of Arctic sea ice is 6.0 million km2, the corresponding carbon dioxide release is between 800 and 900 gigatons.

Since the options given do not include values between 800 and 900, we can estimate the likely total carbon dioxide release to be around 850 gigatons.

Therefore, the answer is E. 850.