A Greenpeace team travels in East Russia to document the damage caused by the subsiding Russia's ancient permafrost, one of the heavy threats of global warming in the region, as temperatures continue to increase.
In several Russian cities houses and infrastructures are subsiding due to thawing permafrost, in some cases the phenomenon is so severe that the residents have been forced to relocate. In the city of Yakutsk the roads look as if the ground beneath them is bubbling and some railways are impassable.