https://joy.videvo.net/videvo_files/video/free/2019-04/large_watermarked/190319_02_ClimateChange_07_preview.mp4 Hand Holding Protest Banner CU Close up of a young woman's hand holding up a sign at a protest. activistactivistsbannerblurredblurrybullhornearthEnglandflagGreat BritainhandholdlingLondonmarchmegaphoneout of focusprotestprotestsrallysignsignsuk