Conspiracy Theorists Claim Greta Thunberg Is A Time Traveller From 1898
That's because they've spotted 'Greta' in a photograph taken in Canada's Yukon territory around the turn of the 20th century.
The picture was taken around 1898 and, you have to admit, it really does look quite a lot like her.
Living off the land, working manually to get water and cultivate crops? That's a very Greta thing to do, isn't it?
Obviously - and this shouldn't need saying - it's a massive coincidence. Greta is just a young Swedish girl, she's not yet attained the power of time travel.
No one has, at least, that we know of.
Naturally, the internet has gone into overdrive to point out the similarities between the young girl in the photo and Thunberg.
After someone shared the photo and mentioned that the girl is 'identical' to Greta, one Twitter user wrote: "No, hun. What it is, right, is that actually she's a time traveller, and she's come to warn us about the future. It's the only explanation."
To be fair, we could use a couple of people from the past coming along to explain how we are doomed to repeat their mistakes just now, that's for sure.
While she's not an inter-dimensional explorer and generational-gadabout, Thunberg is leading the charge to bring us to a better world by controlling our impact on the environment.
She's currently somewhere in the ocean, making her way back from a trip to the USA on which she gave an impassioned speech to the United Nations about climate change.
Impressively, she's made the transatlantic journey without resorting to air travel, because of the carbon footprint associated with air travel.
Despite being heavily criticised by some, she has managed to inspire a generation of younger people to take greater notice of their environmental impact after beginning her weekly school strike around a year ago.
Now, millions of people worldwide have joined her in spending Fridays campaigning for real change and action from the folks in charge of the world's climate policy.
That's even more of a feat when you consider that she had to make the difficult transition from 19th century rural Canada, too.
Featured Image Credit: University of Washington/PA