In recent months oil prices have fallen to historically low levels. The impact is being felt from Saudi Arabia to Venezuela – revenues are collapsing, and producers are in trouble. Why has the price collapsed and what are the long term consequences? In this week’s Newshour Extra we ask whether global policies to cap carbon emissions could lead to a world in which alternative energy sources will force fossil fuels out of business. Join Owen Bennett Jones and his guests as they discuss the future of oil, and the changing world order it heralds. Contributors: Obiageli Ezekwesili - former Nigerian cabinet minister and World Bank official Luay al-Khateeb - Brookings Doha Jeffrey Mankoff - Centre for Strategic and Interanational Studies Tom Burke - Environmentalist Bill Walker - Governor of Alaska Bjorn Otto Sverdrup - Head of Sustainability, Statoil (Photo: An Oil drill against the backdrop of a setting sun. Credit: Getty Images)