GRETA Thunberg has pledged to go "net-zero on swear words".

We previously reported that the Swedish climate activist was videoed shouting "you can shove yer climate crisis up yer a**e" at a snap rally in Festival Park, in the city's Southside. 

The 18-year-old was then accused of being foul-mouthed and sweary on social media.

She told her five million followers: "I am pleased to announce that I’ve decided to go net-zero on swear words and bad language. In the event that I should say something inappropriate, I pledge to compensate that by saying something nice. #COP26."

It is not confirmed what her tweet related to but is believed to be in response to the criticism. 

Hundreds of COP26 delegates gathered at Festival Park earlier in the week to shun politicians for inaction over global warming.

Greta has called for world leaders to take the future "seriously".