Atmosphere of Earth However, polar stratospheric or nacreous clouds are occasionally seen in the lower part of this layer of the atmosphere where the air is coldest. The stratosphere is the highest layer that can be accessed by jet-powered aircraft. The troposphere is the lowest layer of Earth's atmosphere. It extends from Earth's surface to an average height of about , although this altitude varies from about at the geographic poles to at the Equator, with some variation due to weather. The troposphere is bounded above by the tropopause, a boundary marked in most places by a temperature inversion (i.e. a layer of
What Where a brooding, palpable evil, which is a theme that occurs in Beckett's other work." Presented thus is it easy to see "What Where" as Beckett’s "Nineteen Eighty-Four". At the end of "Catastrophe" there is a flicker of hope. Not so here. Just as Winston Smith is beaten into submission so are these characters. O’Donnell brings "the scene closer to realism and create[s] a dark, sinister atmosphere by homing in on the faces of the two actors … As he said, ‘Filming allows you to show a close-up of a terrified man, bringing a different edge to the work.’" Before switching