Greta Thunberg told cheering protesters today 'we will make sure we put world leaders against the wall' if they fail to take urgent action on climate change.

The Swedish teen activist was addressing the crowd at a Fridays for Future protest in Turin, Italy.

She arrived there from Madrid where she had been attending the UN climate summit but said she feared the event would not lead to change.

She said: 'Unfortunately, we probably already know the outcome. World leaders are still trying to run away from their responsibilities but we have to make sure they cannot do that.

'We will make sure that we put them against the wall and they will have to do their job to protect our futures.'

Greta Thunberg told cheering protesters today 'we will make sure we put world leaders against the wall' if they fail to take urgent action on climate change.

The Swedish teen activist was addressing the crowd at a Fridays for Future protest in Turin, Italy.

Protesters chanted Greta's name as she addressed the crowd

Greta was mobbed by photographers and TV crews as she strolled through the Piazza Castello ahead of the protest.

She arrived in Italy wearing her favourite yellow raincoat and a woolly hat

Greta was recently named TIME Magazine's 2019 Person of the Year

Swedish Greta was cheered by the crowd who chanted her name as she arrived wearing her favourite yellow raincoat and a woolly hat.

She said: 'It is not fair that the older generation are handing over the responsibility to solve this crisis to us young people who have not started this crisis. It's not fair that we have to do all this.

'The adults are behaving as if there is no tomorrow but there is a tomorrow, it is the tomorrow where our young people will live and we have to fight for that tomorrow. 'We can no longer take that tomorrow for granted.'

Greta added that the next decade 'will define our future.'

She said: 'What we decide to do or not to do in this decade we will have to live with for the rest of our lives.

'And our children and our grandchildren will also have to live with it.

'So 2019 is almost over and we must make sure that 2020 is the year of action, is the year when we bend the global emissions curve.

'We must make sure, and we will make sure that if we stand together we can do it.'

Earlier, she was mobbed by photographers and TV crews as she strolled through the Piazza Castello ahead of the protest.

Earlier this week, Greta berated rich countries for 'misleading' the world over their response to climate change.

Greta Thunberg accused the older generation of 'behaving as if there is no tomorrow.'

She also got into a Twitter spat with Donald Trump after she was chosen as TIME Magazine's 2019 Person of the Year, an accolade the US president hoped to win.

Trump tweeted: 'So ridiculous. Greta must work on her Anger Management problem, then go to a good old fashioned movie with a friend! Chill Greta, Chill!'

Greta responded by changing her Twitter bio to: 'A teenager working on her anger management problem. Currently chilling and watching a good old fashioned movie with a friend.'

Greta announced she would be attending the Turin event on Twitter saying: 'This Friday 13th I'm looking forward to joining the climate strike in Torino, Italy on my way back home!'

Turin's mayor Chiara Appendino tweeted: 'Turin welcomes you, thank you for your visit'.

Greta shot to global fame last year after she started skipping school every Friday to protest outside the Swedish parliament.

Deep in thought, Greta arrives for climate protest in Turin

Greta takes a stroll before the climate change demonstration begins

A protester in costume at the Fridays for Future protest in Turin, Italy

Greta in Turin's Piazza Castello before thousands of fellow protesters arrive

Protesters in costumes at the Fridays for Future protest in Turin, Italy

A schoolgirl holds a placard at the climate change protest in Turin where Greta Thunberg gave a rousing speech

Greta and fellow activists getting ready for the 'Friday's for Future' demonstration.

Greta getting ready for another climate protest

The teen climate activist who has inspired a generation of youngsters

Turin's mayor Chiara Appendino welcomed Greta on twitter, saying: 'Turin welcomes you, thank you for your visit'.

Greta arrives in Italy on her way home from Spain

Greta Thunberg getting ready for another protest

A protester waves a banner at the climate change protest in Turin where Greta Thunberg gave a rousing speech

A placard-waving protester at the climate change protest in Turin where Greta Thunberg gave a rousing speech