Problem 3
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 7
It has been suggested that global warming over the past several decades likely would have been greater were it not for the effect of certain types of air pollution. Explain how this could be true.
Problem 8
Motor vehicles are a significant source of \(\mathrm{CO}_{2} .\) Using electric cars, such as the one pictured here, is one way to reduce emissions from this source. Although these vehicles emit little or \(\mathrm{no} \mathrm{CO}_{2}\), or other air pollutants directly into the air, can they still be connected to such emissions? If so, explain.
