Tension is rising in Kenya after a new wave of anti-government protests against alleged government corruption and police brutality.

Dozens have been killed and many have condemned the words of President William Ruto, who’s said that protesters targeting businesses should be shot in the legs.

Anita Nkonge, a BBC reporter in Nairobi, explains what has been happening; plus we hear from young Kenyans who have attended the protests.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Producers: Emilia Jansson, Josh Jenkins, Emily Horler and Maria Clara Montoya Editor: Julia Ross-Roy

Water pistols have become a symbol of resistance against overtourism in several cities around the world. This summer local residents in Barcelona, Spain, have been using them again to show their frustration at how mass tourism is impacting their city; from housing to overcrowding.

BBC journalist Laura García joins us to explain why there is so much anger directed towards tourists, as well as host websites such as Airbnb. We also hear which strategies governments in Spain and elsewhere are adopting to deal with the issue. Plus, travel influencer Joy Malonza shares tips about how we can all be more conscientious travellers.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emilia Jansson and Mora Morrison Video Journalist: Baldeep Chahal Editor: Julia Ross-Roy

Rare earth minerals are vital to modern human life - but you probably haven’t heard of them. They’re in our phones, computers and cars. These minerals aren’t actually that rare, but they’re difficult to extract - and this process can be pretty damaging to the environment. Mining just one tonne of rare earth minerals creates 2,000 tonnes of toxic waste. China has been mining rare earths since the 1950s and now the rest of the world is scrambling to find their own reserves.

The BBC’s Climate and Science reporter Esme Stallard explains what rare earths are, and why they matter. And BBC China correspondent Laura Bicker has been to visit two of the most important rare earth mining sites in the country. She tells us about the visit and the pollution their extraction has caused.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Producer: Josh Jenkins and Emilia Jansson Editor: Julia Ross-Roy