easy · GMAT Verbal

Identify the main conclusion: High-speed rail networks significantly reduce the number of short-haul flights between cities, leading to a decrease in overall carbon emissions. In regions with developed rail systems, air travel for distances under 500 kilometers has dropped by nearly half. Clearly, investing in rail infrastructure is a key component of sustainable transportation policy.

1. Investing in rail infrastructure is a key component of sustainable transportation policy.
2. Air travel for distances under 500 kilometers has dropped by half in certain regions.
3. High-speed rail networks reduce the number of short-haul flights between cities.
4. High-speed rail networks are more cost-effective to operate than the short-haul flights they replace.
5. Short-haul flights are the primary cause of carbon emissions in the transportation sector.

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