Western societies have been trying to clean up their act for decades. However, that clean-up has had very dirty consequences, but there is hope. Listen to Hilde Opoku's story of how Ghana and Norway are forging ahead as leaders in the fight for a better environment for all. Hilde Opoku, Deputy Mayor and Leader of the Green Party in Trondheim. Former spokesperson for the Green Party in Norway from 2014 to 2016, Hilde is a political scientist with a specialization in industrial ecology. She previously worked at the Department of Industrial Ecology at the Norwegian University of Science and Technology (NTNU) before entering politics in 2003 when she was elected to the city council of Trondheim.

The boss of the controversial data company Cambridge Analytica is under fire from MPs tonight. Alexander Nix is accused of making false statements when he gave evidence to parliament last month. Tonight we have new evidence, which appears to contradict Mr Nix's evidence to MPs about his company's use of the Facebook data. Andy Davies reports.