Swedish teenager Greta Thunberg has inspired students all around the world to call on leaders to do more to fight climate change. In Thailand, she's had a major influence on a 12-year-old girl named Lilly. Every Friday, instead of going to class, Lilly paddles down a dirty Bangkok canal, fishing out rubbish and plastic bags. We tell you more.
Meanwhile, India claims to have flushed its open defecation problem down the toilet. But experts say there is still a long way to go.
And matcha may be centuries old but it's all the rage today. The superfood is not only tasty and healthy, it could also save Japan's ailing green tea industry.
