Atmosphere of Earth relatively warm air above a colder one), and in others by a zone which is isothermal with height. Although variations do occur, the temperature usually declines with increasing altitude in the troposphere because the troposphere is mostly heated through energy transfer from the surface. Thus, the lowest part of the troposphere (i.e. Earth's surface) is typically the warmest section of the troposphere. This promotes vertical mixing (hence, the origin of its name in the Greek word τρόπος, "tropos", meaning "turn"). The troposphere contains roughly 80% of the mass of Earth's atmosphere. The troposphere is denser than all its overlying atmospheric
What We Live For Better" and "Pride". Principal recording commenced in early to mid 2015, and was primarily recorded with producers Aaron Accetta and Shep Goodman, who had previously worked with the band on their eponymous extended play and "Oh, What a Life". While the band had an extensive set of songs at the beginning of the sessions, enough to create an album outright, the band exercised their material and continued to write and record new songs well into 2016. "What We Live For" largely continues the sound of the band's debut studio album, "Oh, What a Life". Lead singer Zac Barnett stated that