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
Live Earth (United Kingdom, Middle East) and the Star World Channel. MSN was "the exclusive global broadband partner for Live Earth India." The concert was cancelled shortly after the November 2008 Mumbai attacks on November 26, 2008. Wall, Gore, and Pachauri stated in a joint press release that, "due to circumstances far beyond our control, we are saddened to announce that "Live Earth India" has been cancelled. We will continue to work for solutions to the climate crisis for the good of the people of India and around the world. But for now, our thoughts and our prayers are with the victims