Since starting in the US in 1970, Earth Day has spread to around 170 countries. It's celebrated every year in Tokyo with this festival at Yoyogi Park, which takes place on April 19 and 20.
You'll find non-profit organisations and charity groups of all kinds setting up shop, as well as plenty of stalls selling eco-friendly and sustainable lifestyle goods, clothes, handmade accessories and organic foods. Expect a massive gathering of eco-conscious Tokyoites, and don’t forget to bring your own shopping bag.
There will also be live performances over the weekend. You can catch sets by artists including healing artist duo Manakana, singer Tokiko Kato, jazz trio Sakata Akira SOS and many more. You can see the full list of artists on the website.