Clean power is 'hugely important', says Michael Shanks, as the IEA releases 400 million barrels of emergency oil reserves in an unprecedented move

The IEA's 400-million-barrel emergency release, more than double its Ukraine response, comes as Iran cut Strait of Hormuz exports to less than 10%.

The conflict in Iran has halted shipments through the Strait of Hormuz and pushed the price of oil and gas sharply higher.

Clean power is 'hugely important', says Michael Shanks, as the IEA releases 400 million barrels of emergency oil reserves in an unprecedented move