You examine an ice core sample from 10,000 years ago when global temperatures were unusually high.Based upon past studies and insights from current GHG levels,we expect that atmospheric levels of carbon dioxide

Question

Quizplus · Accepted Answer

Studies have shown that during times of high global temperatures, such as the one 10,000 years ago, atmospheric levels of carbon dioxide and methane were unusually high. This is also supported by current levels of greenhouse gases, which show an increase in the concentration of both carbon dioxide and methane. Therefore, option B, which states that both carbon dioxide and methane levels were unusually high, is the best choice.

You Examine an Ice Core Sample from 10,000 Years Ago