| Ukraine war unleashing a 'perfect storm' of crises, warns UN chief On Wednesday, UN Secretary-General António Guterres presented the first detailed policy brief issued by the Global Crisis Response Group on Food, Energy and Finance (GCRG), which he set up to study the effects of the war in Ukraine on the world's most vulnerable. Here is a summary of the findings, and some of your key questions answered, on what the Group aims to achieve. | 
