The adventure of the sciences. Special report for EFE:Verde, by @ValentínCarrera, on board the Hespérides.

Permafrost is any type of material, such as rock or clay, below 0 °. For instance, the frozen surface and  the subsoil  that remains from the last glaciation, around 15,000 years ago, mainly found in areas of Canada, China, Siberia, Alaska and the Antarctica.

by Horizonte Antártida