The world in 2020 is looking more turbulent and uncertain than ever. Powerful economic, demographic and technological forces are rewiring international politics. According to the World Economic Forum's new Global Risks Report, structural shifts are encouraging nation-states to adopt more transactional and unilateral postures. Some nations are abandoning old alliances, questioning the value of multilateralism and retreating to narrowly defined nat...

Ethiopia, Sudan and Egypt are a step closer to resolving their disputes over the filling and operation of the Grand Ethiopian Renaissance Dam. The dam – a huge project on one of the River Nile's main tributaries, the Blue Nile in Ethiopia – is designed to generate 6,000 megawatts of electricity. Its reservoir can hold more than 70 billion cubic metres of water. That's nearly equal to half of the Nile's annual flow. Filling the immense reservoir w...