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The Swedish teenager has amassed a loyal band of supporters on social media where she shares regular updates on her efforts to raise awareness of the threats facing the environment. But a Facebook bug which was live for several hours from Thursday evening to Friday morning enabled users to see which admins were responsible for editing pages. This meant that any user could view anonymous accounts which edit pages, including those belonging to celebrities.

One quick-minded fan of Greta, 17, tapped into one of her posts thanks to the glitch and managed to take screenshots of the accounts which had edited it. And to her followers’ dismay, it showed the the accounts behind some of the posts were those belonging to her father Svante Thunberg and Indian climate change activist Adarsh Prathap. But seeking to dispel any rumours that she had not penned the impassioned messages herself, Greta reached out to her nearly three million followers on Sunday, insisting she has wrote every single one of them. She claimed she has used her father’s personal Facebook page to post some articles and links.

Greta Thunberg, 17, has insisted she has written all of her social media posts amid suspicions

Greta speaks to a crowd of supporters at a rally in Turin, Italy

Others, she said, were posted by Mr Prathap after he had taken them from her Twitter or Instagram pages. She said she acts as co-manager of the @gretathunbergsweden page on Facebook, along with Mr Prathap who founded the page. Greta said: “Some people have been asking who manages this page. “First of all, since last spring I only use Facebook to repost what I write on my Twitter and Instagram accounts. READ MORE: Greta Thunberg snubs Donald Trump in stinging attack - ‘I'm a threat'

Facebook said it 'quickly fixed' the glitch after they were alerted

“Since I have chosen not to be on Facebook personally ( I tried early on but decided it wasn’t for me) I use my father Svante’s account to repost content, because you need an account to moderate a Facebook page. “The rest that is shared on Facebook is reposted from Twitter and Instagram by the guy who founded the Greta Thunberg Facebook page long before I knew it existed. His name is Adarsh Prathap and he lives in India. “Since a lot of people thought it was my official page in the beginning I asked if I could co-manage it and he said yes. DON'T MISS

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Greta wraps up against the cold at a recent rally against climate change

“All texts posted on my Facebook page has of course been written by me, just like everything else.” Facebook said it “quickly fixed” the glitch after they were alerted to it. Last week Greta called on tech giant Siemens to review its involvement in a coal project in Australia.

Greta Thunberg is calling on tech giants, government and individuals to do their bit in the climate change fight

She tweeted: “It seems that @SiemensDE has the power to stop, delay or at least interrupt the building of the huge Adani coal mine in Australia. “On Monday they will will announce their decision. Please help pushing them to make the only right decision. #StopAdani.

Greta, 17, told her followers she had written every single post

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