A new plant at Yucatán’s science park says it can turn the Caribbean’s sargassum problem into something farmers can actually use. State officials are calling it a model for cleaner industry; company leaders say early trials boosted crop weight. The facility just opened and is already talking scale, export markets, and specialized jobs. How will it work in practice, and what does it signal for Yucatán’s economy? Our reporting breaks down the promises and the stakes . . .