Episode 3. As the world is brought to a standstill by the COVID-19 pandemic, Greta has to put her plans on hold. The pandemic reveals the enormity of the challenge that tackling climate change poses. 3/3. Climate activist Greta Thunberg takes a year off school to explore the science of global warming and challenge world leaders, calling for action on climate change.

Episode 3. As the world is brought to a standstill by the COVID-19 pandemic, Greta has to put her plans on hold. The pandemic reveals the enormity of the challenge that tackling climate change poses. 3/3. Climate activist Greta Thunberg takes a year off school to explore the science of global warming and challenge world leaders, calling for action on climate change.

Episode 2. Greta sets off to the annual World Economic Forum in Davos, Switzerland, which will be attended by world leaders, to call for action on climate change. 2/3. Climate activist Greta Thunberg takes a year off school to explore the science of global warming and challenge world leaders, calling for action on climate change.

Episode 2. Greta sets off to the annual World Economic Forum in Davos, Switzerland, which will be attended by world leaders, to call for action on climate change. 2/3. Climate activist Greta Thunberg takes a year off school to explore the science of global warming and challenge world leaders, calling for action on climate change.

Episode 1. Greta travels through North America on her way to a UN climate conference in Chile. To understand the impact of climate change, she stops at three key locations that reveal how the planet is changing. 1/3. Climate activist Greta Thunberg takes a year off school to explore the science of global warming and challenge world leaders, calling for action on climate change.

Episode 2. Greta sets off to the annual World Economic Forum in Davos, Switzerland, which will be attended by world leaders, to call for action on climate change. 2/3. Climate activist Greta Thunberg takes a year off school to explore the science of global warming and challenge world leaders, calling for action on climate change.

Episode 1. Greta travels through North America on her way to a UN climate conference in Chile. To understand the impact of climate change, she stops at three key locations that reveal how the planet is changing. 1/3. Climate activist Greta Thunberg takes a year off school to explore the science of global warming and challenge world leaders, calling for action on climate change.