With global climate strikes happening around the world, young environmentalists have become the subject of criticism abroad and at home.

“I think that young activists shouldn’t worry about criticism because they are doing what they think is right, and following their beliefs,” said 11-year-old Oliver Chua who wants to increase awareness about climate change.

The student from Temasek Primary School was the youngest speaker at Singapore’s inaugural climate rally.

Video: Nuria Ling/TODAY