The world is facing its worst food crisis in history. Millions of tonnes of wheat are stuck in Ukraine, worsening an already precarious situation for many countries that depend on exports from the region. IMF Managing Director Kristalina Georgieva tells FRANCE 24 Business Editor Kate Moody that only "very strong international mobilisation" will save the lives of millions of people. Also in our update from Davos: EU member states move towards an embargo on Russian oil, but with no consensus on the timeline.