Problem 2
Describe one way in which changes in the biosphere can cause changes in the climate system. Next, suggest one way in which the biosphere is affected by changes in some other part of the climate system. Finally, indicate one way in which the biosphere records changes in the climate system.
Problem 3
Recent volcanic events, such as the eruptions of El Chichón and Mt. Pinatubo, were associated with a drop in global temperatures. During the Cretaceous Period, volcanic activity was associated with global warming. Explain this apparent paradox.
Problem 4
Describe the greenhouse effect in your own words. Is the greenhouse effect synonymous with global warming? Explain.
Problem 5
Briefly explain the idea of a feedback mechanism. Next, use your imagination to invent a situation that involves a feedback mechanism-it does not have to relate to climate change, geology, or anything scientific. Begin by describing the initial condition or circumstance. Then describe any subsequent changes that take place due to the feedback mechanism. Make sure to indicate whether the feedback mechanism is positive or negative and why.
