STORY: A spectacular migration from Central Africa to the Arctic Circle is underway.:: The Walk ProductionsIn what organisers are calling the largest-scale public art installation ever attempted, a growing carnival of zoologically-accurate animal puppets are making the 12,000-mile, or 20,000-kilometer journey.The ambitious five-month odyssey aims to raise awareness around the climate emergency.:: THIS EARTH“For many years, the climate debate was led by science."Amir Nizar Zuabi is artistic director of 'The Herds'::: Cape Town, South Africa"And one of the problems with it being about climate and science is scientists are very clever people, and then you also hope they find the solutions for all the problems. Part of what we're trying to do by saying, ‘No, it's about nature, it's about us, it's us’.”:: The Walk ProductionsThe project began in the Congo Basin - home to the world's second largest tropical rainforest.Recycled materials have been used to make the creatures - ranging from gorillas to a towering giraffe."There was something for me that was very tempting or alluring in the fact that they need to be made from very simple materials. They need to almost look like, like earth.” The puppets have also been engineered to move realistically, explains puppetry designer Sipho Ngxola."So you actually research an animal. Then you really study that animal carefully. You watch it carefully which body parts moves when it's breathing, and which body parts moves first when it's about to walk. And there's three things you will look at the animals. It's a breath and it's the way of moving, and what the what the animal does actually."The procession is making stops as it passes through countries including Nigeria, Senegal and Morocco before crossing into Europe via Spain.In each city it visits, residents will be trained in puppet-making and performance, and will add their own animals.:: The Walk ProductionsThe migration aims to conclude at the Arctic Circle in August - having grown from a handful of species to a diverse array of wildlife that are increasingly threatened by a warming world.