The oil price is just the tip of the iceberg that could cause major problems across the globe The surge in oil prices in light of the war on Iran has grabbed most of the headlines. For many observers, the severity of the crisis is measurable in the daily changes in the Brent ticker. Some analysts have also begun pointing to emerging stress in fertilizer markets. But beneath these familiar markers, several less visible – and in some cases more systemic – signals are now flashing red. RT takes a