特朗普不想付钱，是因为“买”格陵兰岛太贵？

Core Viewpoint - The article discusses the shifting stance of the Trump administration regarding the potential purchase of Greenland, initially expressing interest in acquiring the territory but later stating that no payment would be made for it [1][3]. Group 1: Purchase Cost Estimation - Estimating the total cost of acquiring Greenland could approach $1 trillion, which would include not only the purchase price but also relocation fees for the Greenlandic population, subsidies for local welfare systems, and investments in infrastructure and defense [3]. - The U.S. national debt currently stands at $38 trillion, raising questions among investors about the wisdom of such a purchase [3]. Group 2: Political Dynamics - The U.S. Constitution requires that any territorial transfer agreement must receive a two-thirds majority in the Senate, meaning Trump would need to convince at least 14 Democratic senators in addition to all Republican senators [6]. - Some Republican figures have criticized the idea of forcing Denmark to sell Greenland, emphasizing the importance of respecting the sovereignty of the Greenlandic people [6]. Group 3: Strategic Importance of Greenland - Greenland, the world's largest island, is strategically located within the Arctic Circle and is rich in resources such as rare earth elements, graphite, copper, and nickel, making it economically valuable [7]. - The U.S. currently operates a military base on the island, and control over Greenland is deemed crucial for the planned "Iron Dome" missile defense system, enhancing NATO's effectiveness [9].