Video Duration 02 minutes 22 seconds

Greta Thunberg challenges world leaders on climate change

Young, renowned activist slams what she says is inaction of world leaders amid World Economic Forum in Davos.

Activist Greta Thunberg has slammed what she says is the inaction of world leaders on climate change.

Al Jazeera’s Jonah Hull reports from the World Economic Forum in Davos, Switzerland.