Unveiled: two extinct cave lions  - dug from the permafrost - make their first appearance since Pleistocene times.

Expert says deadly gas released from melting permafrost region will lead to 'awful' consequences for global warming.

An army of almost 3000 foreign workers combine with locals to get the city ready for the September APEC summit of world leaders. 

These extraordinary pictures give graphic new evidence of climate change.

'All forest wildfires extinguished' in Siberian Federal District, say officials, but peat flames still raging.

'Perfect husband and father' axed, stabbed or strangled full-figured women 'who resembled his mother'.

Lena River fleet cannot sail after abnormal heat causes 2.5 metre water level drop.

Pensioner from the UK says medical staff among best in the world after he fell suddenly ill on dream trip across Russia with his wife.