Climate change activists face challenges in sustaining the movement | Video Singapore 10 Jan 2021 11:45PM (Updated: 10 Jan 2021 11:50PM) Millions of people were estimated to have taken part in global marches to fight climate change in 2019. But what has become of that movement now? In this week's Spotlight, Isabelle Lim speaks with three activists in Singapore facing the challenge of sustaining the momentum. Advertisement