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Stream the full Tech Now Season 2025 Episode 4 movie online for free in crystal-clear HD quality. No downloads required—just press play and enjoy the action, complete with English subtitles for an enhanced viewing experience.

Tech Now revisits stories about technology that's helping the planet. Nick Kwek meets the Sydney-based start-up using robotics to clean up waterways. Adrienne Murray travels to the Arctic Circle to find out how a community in Svalbard is shifting to clean energy, and Paul Carter meets scientists trying to find ways to remove so-called 'forever chemicals' from the environment.