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The Americas face a hemispheric cluster of tourism challenges that don't quite repeat elsewhere. The Caribbean basin stacks Category 4–5 hurricane intensification, coral disease and bleaching, year-round sargassum, and a collapsing insurance market onto the world's densest concentration of mega-resort capital from Florida through Cancún, Punta Cana, San Juan, Cartagena, and the Brazilian Northeast. Two paired biogeophysical tipping points — near-total loss of tropical Andean glaciers in Peru, Colombia, Chile, and Argentina, and the Amazon dieback threshold straddling Brazil, Colombia, and Peru — together with AMOC sensitivity on both Atlantic coasts, will erase or transform iconic assets across the continent. A continental Indigenous-led tourism shift (AIANTA, ITAC, INPI, Brazil's new Ministério dos Povos Indígenas, Mapuche and Inuit governance) runs against a synthetic-Indigeneity AI risk that current intellectual-property law barely addresses. The Lithium Triangle and a wave of hyperscale data centers in Querétaro, Quilicura, Patagonia, Quebec, and the US Sun Belt are competing for the same scarce water that destinations need, often on the exact landscapes that anchor cultural tourism. Every Latin destination runs on disproportionate US dependency at a moment of Trump-era tariff and visa volatility, while Peru, Argentina, Mexico, and Brazil contend with their own political-cycle whiplash that makes the 75-year horizon required by climate planning structurally incompatible with electoral reality. Layered on top are hemispheric migration pressures (Haiti–DR, US–Mexico, Venezuelan diaspora, the Darién Gap) that supply tourism labor while producing recurrent reputational crises, an Americas-wide cruise economy facing IMO emissions pricing, a Spanish-Portuguese-French-British colonial heritage arc dissolving in the salt-spray zone, and the densest inventory of last-chance tourism assets anywhere on Earth.