Greeted by a group of singing young activists and the massed ranks of the world's media, Swedish teenager Greta Thunberg arrived at the UN climate summit in Madrid on Friday, having taken a catamaran, train and electric car to reach the venue.

Arriving in a small electric car at the conference venue, a series of hangar-like halls near Madrid’s international airport, Thunberg met a group of climate activists, who held hands as they sang a chorus of “Fight for Climate Justice”.

The Swede reached Chamartin train station in the Spanish capital on the night train Lusitania, completing a low-carbon expedition, including a 21-day catamaran voyage across the Atlantic. Thunberg was again mobbed by a crowd of reporters but did not speak, instead tweeting later: “I successfully managed to sneak into Madrid this morning.” Reuters