Logging is the process of removing scrub, forest, woodland or grassland and occurs most commonly in Queensland and New South Wales. Over the last 200 years 70% of Australia's native vegetation has been demolished, most of them in the last 50 years. Between 2001 and 2004, approximately 6 million hectares of various ecosystems were removed (http://en.wikipedia.org/wiki/Land_clearing_in_Australia, 2010). The Australian land has been used over the last century although it is known as "one of the driest and least fertile continents in the world" (Australian Conservation Foundation, 2000), although deforestation is still a problem due to the increase in soil salinity and the greenhouse effect. gas. Trees grow into woody plants with one main trunk, many branches, and come in a variety of shapes, leaf types, and reproductive organs. Tree roots can extend up to three meters deep and wide, sometimes damaging buildings or sidewalks (http://en.wikipedia.org/wiki/Photosensitive, 2010). All plants perform photosynthesis, allowing them to produce their own food by converting carbon dioxide and water into glucose and oxygen using solar energy. Therefore, since all organisms release carbon dioxide through respiration, only plants use it to produce oxygen, which is a circular process (http://en.wikipedia.org/wiki/Photosensitive, 2010). Logging has strict laws across Australia, with variation between states (Stone, A. 2010). A common technique for crushing light scrub and heavy trees is chaining, using a heavy chain up to 50 centimeters in diameter. The chain connected between two tractors is kept close to the ground, completely uprooting trees with roots, flattening the areas. Tractors are required to work within 30 meters of each other... center of paper..., 'Australian Sera Clearing Methods', FAO Corporate Document Repository, viewed 24 May 2010,• Levine, D. 2010, 'Current Population', US Bureau of the Census's World POPClock, viewed 27 April 2010,• Nicholas Rothwell, 2000, 'A farming we will grow', Land Conservation, Justin Healey (ed. ), The Spinney Press, New South Wales, page 6.• Philip, M. and William F. 2004, 'Tropical Deforestation and Greenhouse-gas Emissions', Ecological Applications, (no publication information), volume 14, number 4 , pp. 982–986, viewed 23 April 2010,• Stone, A. 2010, 'Inadequate Queensland logging ban, could worsen logging rates: WWF', WWF Australia, viewed 10 May 2010,