Renewables rising, Part 1: How four countries are reshaping energy security Why it matters: Some 20 per cent of the world’s gas and oil supplies pass through the Strait of Hormuz, the narrow waterway which runs between Iran and Oman, and which has been largely closed to marine traffic since the outbreak of the conflict between Iran and the United States. The disruption of those supplies has exposed countries to volatile prices, geopolitical shocks and supply disruptions. “ The turmoil we are witnessing in the Middle East makes it evident that we are facing a global energy system largely tied to fossil fuels ,” said  UN Secretary-General António Guterres , “where supply is concentrated in a few regions and every conflict risks sending shockwaves through the global economy, particularly to the most vulnerable people .” Renewables, like solar, wind and hydropower offer stable, domestic and increasingly cheaper power.…