On Wednesday morning in Vienna OPEC is holding a meeting, aimed at halting the biggest decline in oil prices for a generation. Back in September, the Organization of Petroleum Exporting Countries reached a tentative agreement to restrict output - but they still haven't hammered out individual output targets for each nation. We spoke to Amrita Sen of Energy Aspects about the biggest and most influential producer - Saudi Arabia.

The old certainties about politics in America have been turned on their heads, including the twin beliefs that organised labour delivers votes for the Democratic Party candidate, while evangelicals deliver votes for the GOP. This time round things were less cut and dried, as Mitchell Hartman of Marketplace reports.

Lithium - or white petrol as it's becoming known - is a hot commodity. Demand for the metal could triple in the next ten years - driven particularly by a rise in demand for batteries in products like smartphones, laptops and electric cars. On Tuesday a group of leading carmakers - including Ford, BMW and Porsche - announced they wanted to build a Europe-wide network of charging stations for electric vehicles - and that's music to the ears of lithium producers like the Canadian firm Wealth Minerals. The company's chief executive Henk Van Alphen spoke to the BBC's Jon Bithrey.

A group of American developers has chosen a patch of countryside in the Netherlands to build a self-sustainable eco-village. Its marketing pitch is pretty straightforward -off the grid and the ideal antidote to the crazy congested urban lifestyle, as Anna Holligan reports.

(PHOTO CREDIT: OPEC logo shown at an informal meeting between members of the Organization of the Petroleum Exporting Countries (OPEC) in Algiers, Algeria September 28, 2016. REUTERS/Ramzi Boudina/File Photo)