Hot dry rock geothermal energy makes use of hot fluids found naturally in basement rock; but such HWR conditions are rare. By far the bulk of the world’s geothermal resource base (over 98%) is in the form of basement rock that is hot but dry—with no naturally available water. This means that HDR technology is applicable almost everywhere on earth (hence the claim that HDR geothermal energy is ubiquitous). Typically, the temperature in those vast regions of the accessible crystalline basement rock increases with depth. This geothermal gradient, which is the principal HDR resource variable, ranges from less than 20 °C/km to over 60 °C/km,
Live from the Underground Live from the Underground Live from the Underground is the debut studio album by American rapper and record producer Big K.R.I.T.. It was released on June 5, 2012, by Cinematic Music Group and Def Jam Recordings. As one of the executive producers on the album, Big K.R.I.T. did the production work for the entirety of the project. The album was supported by four singles: "Money on the Floor", "I Got This", "Yeah Dat's Me" and "What U Mean". "Live from the Underground" received generally positive reviews from critics. At Metacritic, which assigns a normalized rating out of 100 to reviews