Climate change activist Greta Thunberg will spend two weeks travelling across the North Atlantic on a boat with no toilets, kitchens or privacy.

Greta, 16, has stopped flying due to environmental reasons, but is due to attend a crucial climate change conference in New York.

She told the BBC that travelling by boat sends a signal that "the climate change crisis is a real thing".

Electricity on the boat will solely come from wind turbines and solar panels, meaning the journey has a zero carbon footprint.