Passage Summary: Henry wants to switch to electric cars to clean up city air. Umit argues that electric cars just shift the pollution to the power plants that charge them.

Conclusion: Replacing standard cars with battery-powered ones will reduce urban pollution.

Reasoning: Battery engines cause less pollution than internal combustion engines.

Analysis: We need to help Henry counter Umit's point about power plant pollution. A strong counter would show that even with the extra power plant emissions, the total urban pollution still drops. Look for an answer that suggests power plants are located away from cities or that they are significantly more efficient and cleaner than thousands of individual car engines. The goal is to prove that the net pollution in the city specifically will decrease despite the increased demand for electricity.