The newly-garlanded Time magazine person of the year, 16, updated her Twitter bio Thursday to say: ‘A teenager working on her anger management problem.
‘Currently chilling and watching a good old fashioned movie with a friend.’
Greta was quick to make light of Trump’s tweet, also sent Thursday morning, branding her Time award ‘so ridiculous.’
The President of the United States continued: ‘Greta must work on her Anger Management problem, then go to a good old fashioned movie with a friend!
‘Chill Greta, Chill!’’
Thunberg and Trump previously sparred after he made a surprise appearance at a UN climate change summit the young Swede attended in November.
A widely-shared photo and video shows her appearing to glare at him.Uber rider strikes up heartwarming friendship with her lonely driver
Trump was accused of mocking Thunberg afterwards when he tweeted: ‘
She seems like a very happy young girl looking forward to a bright and wonderful future. So nice to see!’
And Thunberg, who has been credited with dramatically boosting awareness of the climate change movement, also hit back at that apparent jibe on her Twitter bio.
She updated it to say: ‘A very happy young girl looking forward to a bright and wonderful future.’
Trump has long portrayed himself as a climate change skeptic.
In 2018, he withdrew the US from the 2015 Paris Accord aimed at tackling climate change by branding it a ‘bad deal’ for his home country.
Political analysts say the president was also keen to try and shred the legacy of his predecessor Barack Obama, who warned of the dangers posed by global warming while in the White House.