After 1,907 kilometre odyssey, crossbreed is back home to his day job keeping polar bears at bay in remote weather station.
Local reindeer herder witnessed the tundra explosion that led to birth of new hole in river.
More than 20 new deals on energy, investment and education are inked in Beijing.
Gas bubbles from waters filling crater hole on Yamal peninsula two months after volcanic-style explosion in thawing permafrost.
New road and rail link over the Nadym River.
More craters expected to form due to such eruptions as permafrost melts - and they ARE caused by global warming releasing methane gas.
Scientists rush to site of latest tundra eruption - which formed a crater 50 metres deep - amid fears for homes and key industrial sites.