German Chancellor Olaf Scholz is urging Russia to ease the global food crisis by helping to facilitate grain shipments from blockaded Ukrainian ports. “You have to hope for the world’s sake that an agreement is reached,” Scholz said, referring to to ongoing negotiations about establishing an export corridor across the Black Sea. “Russia must enable safe passage and at the same time give credible assurances that it will not use the corridor for an invasion,” he told dpa. “It can’t be that ships carrying grain leave Ukrainian ports and Russian warships head for the ports.” Russia’s invasion of n…