Parts of Europe are again too dry this spring raising worries that the wheat crop will be suboptimal. Indeed, some forecasters say this is the new normal in Europe as a result of climate change. Since Europe is responsible for a fifth of world wheat production, this has implications for global food security.  As can be seen in the graph below, EU wheat production has become more volatile relative to the rest of the world. EU wheat yields are substantially above the global average in part because of generally generous amounts of annual moisture. If rainfall becomes more erratic, there will need for greater investment in irrigation systems, or a shift to more drought tolerant varieties of wheat or other crops.  ...