Passage Summary: If the atmosphere gets hotter, we will likely see more heavy rain because heat creates more evaporation and bigger clouds, which are more likely to dump huge amounts of water.

Conclusion: Increased atmospheric temperatures are likely to lead to more frequent heavy rainstorms.

Reasoning: Warmer air causes faster ocean evaporation and holds more moisture, creating larger clouds that produce heavier downpours when they condense.

Analysis: The claim in question acts as a premise that bridges the gap between the size of clouds and the intensity of rain. It provides the final link in a causal chain starting with atmospheric warming and ending with the frequency of heavy downpours. Notice how the argument builds step-by-step: heat creates moisture, moisture creates big clouds, and this specific claim explains why those big clouds lead to the predicted outcome.