South African apartheid ended in 1994 – but this video footage suggests that segregation at one school in Johannesburg may be alive and well.
It’s not only California that’s got water problems – NASA says the whole world is drying up.
Pope Francis wants to save not just Christian souls, but the Earth, too. The pontiff has written a 192-page religious text warning the world that more needs to be done to tackle climate change.
With water levels at a record low in California, vigilantes are using social media to shame their neighbours into saving more water. #Droughtshaming – a practice that began online last year – is back again as California enters its fourth summer of extreme drought. Residents who catch their neighbours wasting water are posting pictures and videos, often with addresses, on Facebook and Twitter as well as via apps. (It is the home of Silicon Valley, after all.)