The content originally appeared on: CNN London (CNN Business)Svein Tore Holsether says the world is careening toward a food crisis that could affect millions of people. Record high natural gas prices have forced the company he runs, fertilizer producer Yara International, to curtail its production of ammonia and urea in Europe to 45% of capacity. With less of those two essential agricultural ingredients, he expects knock-on effects for global food supplies. 'It's not whether we are going to have a […]