Source:
https://scmp.com/article/551473/pupils-protest-government-house-over-pollution

Pupils to protest at Government House over pollution

A group of 150 ESF pupils will stage a protest outside Government House tomorrow afternoon to urge speedier action to clean up Hong Kong's polluted air.

They will hand deliver up to 2,500 letters addressed personally to Chief Executive Donald Tsang Yam-kuen written by students from 11 English Schools Foundation schools, and other schools, along with three signature petitions from students and parents.