As digital technologies increasingly shape childhood and adolescence, understanding and mitigating online harms and mental health impacts has become a critical and interwoven issue, from parenting and pediatrics to pedagogy and policymaking.

This keynote examines the latest Canadian evidence on risks facing young people - from social media's impact to emerging AI concerns - and explores Canada's evolving public policy landscape, including urgent efforts to advance an Online Safety Act. Far from a domain for experts, children's online safety 'takes a village', with opportunities for the CMHO community to advance this work through local organizing, advocacy, and coalition building across Ontario and Canada.