Those water issues -- driven by climate change -- will see African countries grappling with food crises for decades to come, Seelan Gobalsamy, chief executive officer of South Africa’s Omnia Holdings Ltd., said in an interview Monday. Inadequate infrastructure to move key farming products will cause further problems, he said. “When the sun shines, it’s harsher and when there’s rain, it comes down in buckets,” the CEO said in Bloomberg’s office in Johannesburg, hours before one of the heaviest summer hailstorms the city has experienced in years. “If you ask me what our biggest risk is going forward, is it Russia’s war on Ukraine, or supply chain? It’s actually climate change.”