medium · LSAT Logical Reasoning
While high-speed rail projects require a massive initial investment of public funds, they eventually decrease the demand for short-haul flights. Because air travel is much more carbon-intensive than rail travel, this shift leads to a significant reduction in a country's total carbon footprint. Consequently, high-speed rail is an essential component of any effective national environmental policy.
Which one of the following most accurately expresses the main conclusion of the argument?
- No national environmental policy can be effective without high-speed rail as a core element.
- High-speed rail systems demand an enormous upfront commitment of public money.
- The move from short-haul flights to rail meaningfully shrinks a country's overall carbon footprint.
- Flying is considerably more carbon-intensive than traveling the same distance by rail.
- Building high-speed rail is the most reliable single step a nation can take to reverse climate change.
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