As the Middle East conflict sends fuel costs skyrocketing and threatens to put a dent in the global economy, the argument for reducing the world's dependence on oil and gas and moving towards renewables has grown louder.
Ships have been blocked – and in some cases burning – at the Strait of Hormuz, a narrow passage near Iran through which a fifth of the world's oil and gas passes. The key supply route has been effectively closed, stopping oil, gas and other essential exports from the Gulf region and sending commodities on a rollercoaster ride.