Refer to the Graph, Showing a Continual Increase in CO₂

Multiple Choice

Refer to the graph, showing a continual increase in CO₂ since measurements began about 1960. In addition to the data plotted in the graph, data from air trapped in ice caps show that CO₂ levels have been strongly correlated with atmospheric temperatures for hundreds of thousands of years.What is one conclusion that might be drawn from these two sets of data?

A) Adding CO₂ to the atmosphere is raising global temperatures.
B) Adding CO₂ to the atmosphere is lowering global temperatures.
C) CO₂ levels can be controlled by stopping CO₂ measurements.
D) CO₂ levels can be controlled by controlling global temperatures.
E) The most likely way to control CO₂ is by controlling rates of photosynthesis.