One Hour by the Concrete Lake is Pain of Salvation's second studio album. It is a concept album focusing on the issues of nuclear power and waste, displacement of indigenous peoples, the firearm industry, and human discovery. Release history One Hour by the Concrete Lake was first released by Avalon Records in Japan in July 1998. It was later released in Europe in January 1999 on InsideOut, in the USA in November 1999 on InsideOut America and in South America in November 1999 on Hellion. Overview One Hour by the Concrete Lake takes a more thorough and factual approach to its concept than its predecessor, Entropia. A number of facts are given in the album booklet, with a list of sources provided at the end. The chronological order of songs is the same as the track order (as opposed to Entropia) and a number of the events and places are real. For example, the Black Hills in North America and Lake Karachay in the former USSR. The sound is generally darker and more subdued than Entropia, with a harsh, industrial feel to the guitar tones. Daniel Gildenlöw has personally, though reluctantly, stated that Concrete Lake is his least favorite Pain of Salvation album. Concept One Hour by the Concrete Lake follows the fictional tale of a man that works in the weapons industry. He begins to have doubts about the morality of his occupation, and realizes that he is just part of a big "machine" that controls his life. He makes a New Year's resolution to discover what consequences his life and his work have on other parts of the world, and decides to break free of the machine. In the second chapter, he travels around the world to many different places and sees what effects his weapons are actually having. He remembers being told that the weapons he helped to make would save human lives and preserve the peace, yet all he sees are weapons being used by people to kill other people—which is their designed purpose. Furthermore, he finds native people (specifically, Native American Indians) struggling to reclaim their sacred land from the colonizing white man, who have also taken uranium from the ground and dumped radioactive waste into the local rivers. In the third chapter, he arrives at shores of Lake Karachay (in Kyshtym in the former USSR). There, so much nuclear waste had been dumped over