Leading expert assesses the risk of 'waking up' this deadly disease currently eradicated, and warns that rising Russian levels of HIV brings a far greater risk.

Scientists rush to site of latest tundra eruption - which formed a crater 50 metres deep - amid fears for homes and key industrial sites.

Enough joking. New NASA-Russian research is leading to concern that global warming is causing truly disturbing changes to the virgin forests of northern Russia.

Permafrost remains of long-gone woolly rhinos, mammoths and cave lions bring intriguing scientific breakthrough.

Summer flooding will worsen dramatically, and the Arctic could be ice-free in summer by 2034.

Vineyards will flourish as winters become almost 10C milder heralding a large population influx, says new scientific prediction.

Permafrost preserved the ‘oldest blood in the world’ boosting hopes of bringing extinct species back to life.

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

Little cat is possible brother to ‘Boris’ found last year some 15 metres (50ft) away.