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
Ben Elton Live from Planet Earth 250,000. Reviews of the first episode were largely negative. Colin Vickery of the "Herald Sun" called it "an early contender for worst show of the year", and Amanda Meade of "The Australian" called it "a screaming, embarrassing failure". "The Age"'s Karl Quinn stated there was "more to like than dislike" about the show. A third episode went to air in a delayed timeslot of 10:40 pm, but ratings dropped further to 189,000 viewers and on 23 February, Channel Nine announced the show had been cancelled. Ben Elton Live from Planet Earth Ben Elton Live From Planet Earth is an Australian