Youth climate activists demand bold action at U.N. summit
![Youth climate activists demand bold action at U.N. summit](https://shawglobalnews.files.wordpress.com/2019/09/2019-09-21t151919z_1752372275_rc11cbb76ea0_rtrmadp_3_climate-change-un-youth.jpg?quality=70&strip=all&w=720&h=480&crop=1)
Swedish 16-year-old activist Greta Thunberg started the climate strike movement with her lone protest in front of her country's parliament and told U.N. Secretary-General Antonio Guterres that youth are united and unstoppable.