alexandria: i was one of the fifirst climate strikersrs herin the e united statates.woman: she said, "i want to ststrike." and we bothth laughe. we didn't think ananybody would pay attention. in a period of 9 months, you know, we went from thisis place of just sititting a bench with a sign to, you know, organizing globally. [cheering] crowd: ♪ if you will fight for us, we're gonna fight for you will y you fight for us? ♪ alexandriaia: these dedemands ae directed at those in power who are inside the united nations climate summit. . and we will continueuo climate options till they hear us. [cheering] krkristin: right nowow, our livs are...just...overwhelming. it's difficult to keep up with our schedules. woman: i'd like for us to all welcome alexandria. exandria: pepeople alwlways ask how we o organize for a global climate stririke. so really,y, w it's all done is it's done through social media. we use a lot of what'sapp, discord, slack. insnstagram's where a lot of, like, the youth are, and then twitter's where you'll see the climate scientists, and then facebook--it's