Can the vast and sparsely populated African country translate its renewable power potential into national development?

Oil sinks as Israel accuses Tehran of violating ceasefire, just hours after U.S. President Donald Trump announced it had come into effect. CNBC's Dan Murphy joins "Worldwide Exchange" with the details ...

Israel said Iran had committed a 'severe violation' of the Trump-announced ceasefire and vowed to respond 'with force.' Follow along for live updates.