Green ban

A green ban is a form of strike action, usually taken by a trade union or other organised labour group, which is conducted for environmentalist or conservationist purposes. They were mainly done in Australia in the 1970s, led by the Builders Labourers Federation (BLF) and used to protect parkland, low-income housing and buildings with historical significance. At times, industrial action was used in relation to other issues, such as when a 'pink ban' was placed on Macquarie University due to the expulsion of Jeremy Fisher, a gay man, from student housing.