Craig, also known as "Birdgirl" online, is one of a young generation of activists who have gown up in the looming shadow of climate breakdown and are tired of waiting for the grown-ups to solve the issue.
As a child Craig grew up watching birds in a small town in south west England. She started a blog chronicling the ones she's seen and has tens of thousands of followers online.
Environmental campaign group Greenpeace invited Craig onto their research ship to help give the 18-year-old a platform to spread her message about the climate crisis.
Climate data shows the Arctic is one of the fastest changing ecosystems on the planet.
Getting to the ice floe involved a two-week quarantine in Germany, followed by a three week voyage to the edge of the sea ice, 82 degrees north.
For Craig the toughest part of the journey were the crossings in open seas, when huge waves pounded the sides of the boat, lurching it and its inhabitants from side to side.
"In a way ship life's been really interesting for me to adjust to," said Craig, "you're up at seven thirty, doing chores at eight."
Craig said those who dismiss youth protests as the collective rebellious phase by this generation of teenagers are wrong. She wants those in power to stop treating climate change as a low-priority issue, raised only to appease "the lefties in the corner".
"It's everything now and it has to be treated like that," she said.
MYA-ROSE CRAIG: I'm Mya-Rose Craig, and I'm an 18-year-old environmental activist and campaigner, and it's very exciting, because I am up here with Greenpeace in the Arctic. And I'm here to bear witness to the sea ice minimum, but I'm also here doing the most northerly youth strike for climate to try and make a statement about how temporary this amazing landscape is and how our leaders have to make decision now in order to save it.
I absolutely think that my generation has always had to think about climate change. It's always been a part of our lives and part of our futures, which is why this, as we've gotten older there's been this massive wave of, just this need for change, this demand for change when we finally realized that I suppose the grown ups aren't going to solve this, so we have to do it ourselves.
I've talked to a politician or two over the years, and I think the main frustration to me in terms of just environmental issues in general, not even climate change is just it's always treated as a backbench issue, and it's always treated as something that you sort of do to appease, like, the lefties in the corner. And there's this complete lack of understanding that the times have changed, you know. This isn't like the '80s with the, like, sort of, animal rights crew in the corner. This is like, yeah, it's everything now, and it has to be treated like that.