It seems that when the climate-change activist, Greta Thunberg, isn't out shouting at world leaders, hanging out with Leonardo DiCaprio, or riding bikes with Arnold Schwarzenegger, she is traveling back in time.

Yep, the latest internet rumor is that the Swedish teenager is actually a time-traveler. I think I've had enough of the internet for one day...

A 120-year-old photograph has recently gone viral after it apparently pictures the youngster herself, working at a gold mine.  Conspiracy theorists are convinced that it's solid evidence of her apparent time-travel, while others aren't so convinced.

Keep scrolling for the full details, and to see the spooky photo itself...

Greta Thunberg has become the face of the youth climate change movement.

The Swedish sixteen-year-old has been responsible for the global school strike movement, which began with weekly Friday school strikes to protest for climate change action.

Just a year ago, she was relatively unknown.

via: Twitter

Greta would regularly sit on her own outside Swedish parliament, first staging a "School Strike for Climate" in August last year. In the weeks leading up to the country’s general election, Thunberg sat on the steps outside of the parliament building in Stockholm, holding up the now-iconic sign that read “Skolstrejk För Klimatet" — translating to “school strike for climate."

The teen sat outside the building during school hours for 3 weeks.

Her demands were that the Swedish government reduce carbon emissions in accordance with the Paris Agreement. By sacrificing her education to protest for action, the teen began to conjure up attention and gain traction online.

Her unwavering commitment to the environment has woken the rest of the world.

While a little over a year ago, the name "Greta Thunberg" was relatively unknown, now, hers is the first name that springs to mind when you think of the climate change movement.

Thunberg is known for delivering blistering, matter-of-fact speeches about the urgency of what she calls the "climate crisis."

Fast-forward to now, Thunberg continues to hold governments accountable during her powerful talks, which have seen her nominated for a Nobel Peace Prize and placed in TIME's top one-hundred influential people in the world list.

Her message is clear: we need to act now.

Having whipped up a gigantic global youth movement, climate change is finally getting the attention it deserves, but Thunberg still believes that governments are the ones who still aren't listening. According to the United Nations, humanity has under twelve years to prevent a climate change crisis. A report released by the Intergovernmental Panel on Climate Change (IPCC) at the end of 2018 called for immediate “unprecedented changes" to all aspects of society.

If we do not act, the future, if there is one at all, will be very bleak.

Rising global temperatures pose a high risk of social and environmental disasters, including floods, drought, wildfires, and food shortages for millions of people across our planet.

Thunberg has gone to great lengths to fight her cause.

In July, the teen ditched environmentally damaging air travel and sailed across the Atlantic to attend the U.N. climate summits in the U.S. and Chile.

Little by little, her trailblazing activism seems to be sinking in.

According to Live Kindly, earlier this year, Mohammed Barkindo — the secretary-general of OPEC (the Organization of the Petroleum Exporting Countries) — acknowledged public opinion surrounding the climate crisis as a threat to the oil industry.

And her youth school strike movement is growing on a mass scale.

On September 20, millions around the world, from London to New York, Sydney to Colombia, ditched the classroom to peacefully protest for climate action in what Thunberg dubs "Fridays for Future."

She has attracted the attention of millions of people across the globe...

via: Getty

And has subsequently become one of the most talked-about people of the year.

But now, Greta is in the headlines for an entirely new, and rather unexpected reason...

via: Getty

Some conspiracy theorists have come up with a rather interesting theory about the teenager.

The latest Greta rumor?

via: Getty

People now believe that the teenager is a time-traveler. Apparently.

No, this is not a joke.

via: Getty

An ancient photo has been unearthed which apparently shows the teenager hard at work with 3 other children.

It doesn't sound too out of the ordinary, right?

via: Getty

Well, the strange part about it, is that the photograph is estimated to have been taken in 1898... Meaning it dates back a staggering 120 years.

The picture was discovered in the photo archives at the University of Washington...

via: Getty

And the uncanniness of the child is simply mind-blowing.

Here is the photograph in question.

3 children are seen working hard at, what is believed to be, a gold mine in the Yukon Territory in Canada.

Take a closer look...

The child on the bottom left looks awfully familiar, doesn't she?

The conspiracy theorists have been going crazy...

With one social media user commenting, "What it is, right, is that actually she's a time traveler, and she's come to warn us about the future. It's the only explanation."

But, despite the overwhelming belief in time-travel...

Others aren't too convinced, and simply believe that it's a photoshop job, with one user writing, "That has to be photoshopped surely, they’re identical."

As for the truth? We may never find out...