There's a call to better educate young men and boys to quit the cat-calls, locker room talk and the sharing of nude photos and videos.
It follows the release last week of a survey of sexual assault and harassment experienced by Christchurch Girls' High School students, where 20 reported being raped.
This morning Kathryn talks to two head boys from Otautahi Christchurch who are determined to change the culture: Christchurch Boys' High School head boy Henry Allott, and head boy at Riccarton High School, Silas Zhang.