Ethiopia’s online hate speech law Disseminating hate speech online in Ethiopia could now land you with a prison sentence of up to three years and a fine of $3000US, but the new law has proved controversial. Julie Owonp, Excutive Director of Internet without borders explains their concerns.Kivuwatt Rwanda has an ambitious plan to go from half of the population having electricity at the moment to everyone within the next four years. Digital Planet has been given access to one project that aims to be a key part of that expansion. In the depths of Lake Kivu – one of East Africa’s great lakes – there’s methane and they’re burning the methane to generate electricity. Kivu is one of Africa’s so-called ‘killer lakes’, because the gases it harbours could be deadly for the thousands who live on shore. Burning some of the gas could help make it safer. Gareth Mitchell reports from the floating barge that is supplying 30% of the country’s electricity.Carnival 4.0 It’s Carnival week in Rio and this year for the first time celebrations have gone fully hi-tech with augmented reality floats, QR Codes and RFID tags tracking costumes and smart bands monitoring the health of performers. But there have also been warnings about facial recognition. Brazil-based journalist Angelica Mari has been following proceedings. And joins us on the programme.(Image: Vector illustration of a set of emoticons. Credit: Getty Images) Producer: Ania Lichtarowicz