As the U.S.-Canada trade war intensifies one of America’s greatest vulnerabilities is an unassuming mineral: potash. As a key source of potassium, potash is essential to plant growth, boosting crop yields, and preventing soil depletion—making it irreplaceable in modern industrial farming and vital to global food security. Without it, agricultural output would plummet, driving up food prices and exacerbating shortages. Yet with few domestic sources, the U.S. imports over 80% of its supply from Canada—making the mineral a potential economic weapon for Canada. Recognizing this vulnerability, Ontario Premier Doug Ford has floated the idea of cutting off U.S. exports entirely in response to the Trump administration’s promise of escalating tariffs.
Even President Donald Trump has belatedly recognized the importance of Canadian potash. In Feb., he loweredhis initial 25% tariff to 10%. Yet Trump’s willingness to gamble with this critical resource stands in stark contrast to past leaders, who went to great lengths to …