Editing Immigration to Australia (section)

===Environment===
[[File:Melbourne at night from the International Space Station.jpg|thumb|[[Melbourne]] at night from the [[International Space Station]], showing its [[urban sprawl]]]]
Some [[environmental movement]]s believe that as the driest inhabited continent, Australia cannot continue to sustain its current rate of population growth without becoming [[Human overpopulation|overpopulated]]. The [[Sustainable Population Australia]] (SPA) argues that [[climate change]] will lead to a deterioration of natural ecosystems through increased temperatures, extreme weather events and less rainfall in the southern part of the continent, thus reducing its capacity to sustain a large population even further.<ref>{{cite web|title=Baby Bonus Bad for Environment |url=http://www.population.org.au/media/mediarels/mr20061023.pdf |website=population.org.au |publisher=Sustainable Population Australia |access-date=20 May 2015 |url-status=dead |archive-url=https://web.archive.org/web/20080627115015/http://www.population.org.au/media/mediarels/mr20061023.pdf |archive-date=27 June 2008 }}</ref>  The [[The Australia Institute|Australia Institute]] has concluded that Australia's [[population growth]] has been one of the main factors driving growth in domestic greenhouse gas emissions.<ref name=":1" /> It concluded that the average emissions per capita in the countries that immigrants come from is only 42 percent of average emissions in Australia, finding that as immigrants alter their lifestyle to that of Australians, they increase global greenhouse gas emissions.<ref name=":1">{{cite web |url=http://www.tai.org.au/index.php?option=com_remository&Itemid=36&func=fileinfo&id=47 |title=Population Growth and Greenhouse Gas Emissions |publisher=Tai.org.au |date=10 July 2011 |access-date=14 July 2011 |archive-date=8 August 2020 |archive-url=https://web.archive.org/web/20200808233615/https://www.tai.org.au/index.php?Itemid=36&func=fileinfo&id=47&option=com_remository |url-status=live }}</ref> The Institute calculated that each additional 70,000 immigrants will lead to additional emissions of 20 million tonnes of greenhouse gases by the end of the Kyoto target period (2012) and 30 million tonnes by 2020.<ref>{{cite web |url=http://www.tai.org.au/index.php?option=com_remository&Itemid=36&func=fileinfo&id=876 |title=High Population Policy Will Double Greenhouse Gas Growth |publisher=Tai.org.au |date=10 July 2011 |access-date=14 July 2011 |archive-date=8 August 2020 |archive-url=https://web.archive.org/web/20200808164736/https://www.tai.org.au/index.php?Itemid=36&func=fileinfo&id=876&option=com_remository |url-status=live }}</ref>