The correct order for a coherent paragraph is 2 → 1 → 4 → 3. The logical sequence is as follows:
- Sentence 2: "Sentence 2 establishes Canada's claim to the Northwest Passage, detailing the official acquisition of the islands comprising the Passage in 1880 and asserting sovereignty over the shipping routes."
This sentence establishes Canada's ownership and sovereignty over the Northwest Passage, setting the context for the dispute.
- Sentence 1: "Sentence 1 presents the US position that the Northwest Passage is an international strait, meaning its vessels should be able to transit without requiring Canada's permission."
This sentence presents the US perspective, which challenges Canada's sovereignty over the passage by classifying it as an international waterway.
- Sentence 4: "Sentence 4 addresses the lack of a formal legal resolution between the US and Canada regarding access, while acknowledging an existing agreement that necessitates US consent from Canada for transit."
This sentence addresses the unresolved legal matter but notes a bilateral agreement concerning access, requiring Canada's consent for US transit.
- Sentence 3: "Finally, Sentence 3 concludes the paragraph by discussing the potential future irrelevance of the dispute due to projected changes in Arctic Ocean ice conditions, which could negate the need for route permissions."
This sentence concludes by proposing that future alterations in Arctic ice conditions may render the present dispute obsolete.
Conclusion:
The correct sequence is 2 → 1 → 4 → 3. This order logically builds the context of the dispute and concludes with a future perspective on the issue.