<Table> <Tr> <Td> </Td> <Td> Wikinews has related news: Scientists warn thawing Siberia may trigger global meltdown </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Wikinews has related news: Scientists warn thawing Siberia may trigger global meltdown </Td> </Tr> <P> In geology, permafrost is ground, including rock or (cryotic) soil, at or below the freezing point of water 0 ° C (32 ° F) for two or more years . Most permafrost is located in high latitudes (in and around the Arctic and Antarctic regions), but at lower latitudes alpine permafrost occurs at higher elevations . Ground ice is not always present, as may be in the case of non-porous bedrock, but it frequently occurs and it may be in amounts exceeding the potential hydraulic saturation of the ground material . Permafrost accounts for 0.022% of total water on Earth and exists in 24% of exposed land in the Northern Hemisphere . It also occurs subsea on the continental shelves of the continents surrounding the Arctic Ocean, portions of which were exposed during the last glacial period, with global weather implications . </P> <P> A global temperature rise of 1.5 ° C (2.7 ° F) above current levels would be enough to start the thawing of permafrost in Siberia, according to one group of scientists . </P>

Where do the permafrost soil found in asia