We are currently witnessing the beginning of a global food crisis, driven by the knock-on effects of a pandemic and more recently the rise in fuel prices and the conflict in Ukraine. There were already clear logistical issues with moving grain and food around the globe, which will now be considerably worse as a result of the war. But a more subtle relationship sits with the link to the nutrients needed to drive high crop yields and quality worldwide. Crops are the basis of our food system, whether feeding us or animals, and without secured supply in terms of volume and quality, our food system is bankrupt. Crops rely on a good supply of nutrients to deliver high yields and quality (as well as water, sunlight and a healthy soil), which in modern farming systems come from manufactured fertilizers. As you sit and read this article, the air you breath contains 78% nitrogen gas – this is the same source of nitrogen used in the production of most manufactured nitrogen fertilizers.