https://joy.videvo.net/videvo_files/video/free/2019-04/large_watermarked/190319_05_ClimateChange_HD_003_preview.mp4 CU Hand Holding Protest Sign Hand holding a sign saying 'it's the final countdown,' for the student climate change protest, in London. 1080pactivismactivistclimate changedemonstrationdemonstratorEnglandenvironmentfinal countdownglobal warminghandLondonprotestprotest signprotesterprotestingprotestorsignsignageuk