The Earth From the Air

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Air pollution is the introduction into the atmosphere of chemicals, particulate matter or biological materials that cause harm or discomfort to organisms. [57] Stratospheric ozone depletion is caused by air pollution, chiefly from chlorofluorocarbons and other ozone-depleting substances. Timothy W. Lyons, Christopher T. Reinhard & Noah J. Planavsky (2014). "Atmospheric oxygenation three billion years ago". Nature. 506 (7488): 307–15. Bibcode: 2014Natur.506..307L. doi: 10.1038/nature13068. PMID 24553238. S2CID 4443958. Born in 1946, Yann Arthus-Bertrand has always been fond of nature. It was in the late 70s, in Kenya, while studying with his wife Anne the every day life of a pride of lions that, that he truly became a photographer. He understood that he had to tell the facts through images rather than words. He also discovered the beauty of the world seen from above when he became a hot air balloon pilot and began experimenting with aerial photography. By comparison, the summit of Mount Everest is at 8,848m (29,029ft); commercial airliners typically cruise between 10 and 13km (33,000 and 43,000ft) where the lower density and temperature of the air improve fuel economy; weather balloons reach 30.4km (100,000ft) and above; and the highest X-15 flight in 1963 reached 108.0km (354,300ft). The upper limit varies depending on the definition. Various authorities consider it to end at about 10,000 kilometres (6,200mi) [23] or about 190,000 kilometres (120,000mi)—about halfway to the moon, where the influence of Earth's gravity is about the same as radiation pressure from sunlight. [22] The geocorona visible in the far ultraviolet (caused by neutral hydrogen) extends to at least 100,000 kilometres (62,000mi). [22]

Earth from the Air – Wecommunic8 Earth from the Air – Wecommunic8

Arthus-Bertrand's mission was to create a photographic record of the natural world at the start of a new millennium. Taken from all over the planet, the 160 photographs chosen for the exhibition tell a story about our changing planet and the need for sustainable development. i take my daughter of 11 years old up to town every week and we always drop into the exhibition, we spent loads of time to look around the display and think that it was an absolutely fantastic experience.thankyou for the pleasure. The constant re-arrangement of continents by plate tectonics influences the long-term evolution of the atmosphere by transferring carbon dioxide to and from large continental carbonate stores. Free oxygen did not exist in the atmosphere until about 2.4 billion years ago during the Great Oxygenation Event and its appearance is indicated by the end of the banded iron formations.This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Reflections Physical and Moral, Upon the Various and Numerous Uncommon Phenomena in the Air, Water, or Earth, Which Have Happened from the Earthquake a Member of Parliament in Town to His 1

Earth from the Air - Wikipedia

Because in an ideal gas of constant composition the speed of sound depends only on temperature and not on pressure or density, the speed of sound in the atmosphere with altitude takes on the form of the complicated temperature profile (see illustration to the right), and does not mirror altitudinal changes in density or pressure. NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery.From the outset, any photography taken in our study of lions was merely intended to complement the text. The real objective was to produce a scientific thesis. Mayor of London, Ken Livingston, opens the Earth from the Air exhibition, talking with Photographer Yann Arthus-Bertrand and Exhibition Director Chris Bridge. Seeing (and photographing) the Earth from the sky allows a whole new perspective, as photographer Yann Arthus-Bertrand's diverse and colourful photographs demonstrate, from climbers on Mont Blanc to the winding rivers of Mongolia... David C. Catling and Kevin J. Zahnle, The Planetary Air Leak, Scientific American, May 2009, p. 26 (accessed 25 July 2012)