Climate ChangeNEWSYOUTH VOICES WATCH: Greta Thunberg & Youth Activists Testify Before House Committee by Parentology September 19, 2019 by Parentology September 19, 2019 Watch as activisits Greta Thunberg, Jamie Margolin, Vic Barrett and other youth activists challenge the US House of Representatives on climate change. 0 FacebookTwitterPinterestEmail