![As the world warms, permafrost is being exposed. AP Photo](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/RGUI2AFYIJ52YKSEG5WPC4RMLU.jpg?smart=true&auth=fc6626b52d40da81f6b808d5e0f965348f6d1d277de6c29be2adcb0771943936&width=400&height=225)
As the world warms, permafrost is being exposed. AP Photo
As the world warms, permafrost is being exposed. AP Photo
What is the 'zombie virus' found in Russia – and should we be worried?
Researchers revive viruses from melting Siberian permafrost frozen for up to 48,500 years, raising fears that pathogens could create new infections