Businesses around the world are confronting a painful – and potentially long-lasting – rise in costs amid the US-Israel war on Iran, as global shipping firms introduce steep price increases to offset a mounting fuel crisis.In Shanghai, one of the world’s busiest ports, the price of shipping a container has already surged dramatically since the start of the war, according to the Shanghai Containerised Freight Index – a gauge tracking spot rates across 13 global trade lanes out of the city.The...