The belief that an increase in average annual temperature will lead to reduced precipitation across the United States is true.

• A. True
• B. False
• C. Not enough information
• D. It depends on context

Answer: (B)

Warming does not automatically mean less precipitation across the entire United States. As temperatures rise, the atmosphere can hold more moisture, which tends to intensify the hydrologic cycle. This can lead to heavier rainfall events in some areas while others may experience more drought, and overall precipitation patterns shift regionally rather than uniformly decreasing. In the United States, models project changes in where and when rain falls—often drier conditions in the Southwest and parts of the interior West, with different trends in other regions and more extreme rainfall events overall. So the statement is false because a blanket reduction in average annual precipitation across the whole country is not supported by climate projections.