What was the 1970s oil crisis, and are we heading for something worse?

The month-long closure of a crucial waterway for the global energy supply has sparked warnings the world is heading for problems worse than those caused by the 1970s oil crisis.

Lars Jensen, a shipping expert and former director at Maersk, told the BBC the impact of the US-Israeli war on Iran could be "substantially larger" than the economic chaos seen in the 1970s.

His comments follow a warning from the director of the International Energy Agency, Fatih Birol, earlier this month that the world is "facing the greatest global energy security threat in history".

"It is much bigger than what we had in the 1970s, the oil price shocks. It is also bigger than the natural gas price shock we have experienced after the Russia's invasion of Ukraine," he told the BBC.

But while the closure of the Strait of Hormuz is disruptive to global supplies, others argue the world today is more resilient.