Western leaders are preparing for the possibility that Russian natural gas flows through the key Nord Stream pipeline may never return to full levels. WSJ’s Shelby Holliday explains what an energy crisis could look like in Europe, and how it might ripple through the world. Illustration: David Fang Economic growth in the eurozone accelerated even as Russia’s invasion of Ukraine sent energy and food costs surging and shattered household and business confidence, but cuts to supplies of natural gas threaten to push it into contraction over coming months. The world’s third-largest economy was buoyed by the lifting of most pandemic restrictions during the first half of the year, which helped it grow at a faster-than-expected clip despite higher energy costs and continued blockages in supply chains. The European Union’s statistics agency Friday said the combined gross domestic product of the eurozone’s members was 0.7% higher in the three months […]