Editing Cloud (section)

===Adding moisture to the air===
Several main sources of water vapor can be added to the air as a way of achieving saturation without any cooling process: [[evaporation]] from surface water or moist ground,<ref name="convection">{{Cite book |last=Pearce, Robert Penrose |url=https://books.google.com/books?id=QECy_UBdyrcC&pg=PA66 |title=Meteorology at the Millennium |publisher=Academic Press |year=2002 |isbn=978-0-12-548035-2 |page=66}}</ref><ref name="auto"/><ref>{{Cite web |last=JetStream |year=2008 |title=Air Masses |url=http://www.srh.weather.gov/srh/jetstream/synoptic/airmass.htm |url-status=dead |archive-url=https://web.archive.org/web/20081224062959/http://www.srh.weather.gov/srh/jetstream/synoptic/airmass.htm |archive-date=24 December 2008 |access-date=2 January 2009 |publisher=[[National Weather Service]]}}</ref> precipitation or [[virga]],<ref>{{Cite web |last=[[National Weather Service]] Office |year=2009 |title=Virga and Dry Thunderstorms |url=http://www.wrh.noaa.gov/otx/outreach/ttalk/virga.php |access-date=2 January 2009 |location=Spokane, Washington |publisher=[[National Oceanic and Atmospheric Administration]]}}</ref> and [[transpiration]] from plants.<ref>{{Cite book |last1=Reiley, H. Edward |url=https://books.google.com/books?id=jZvsnsLIkNsC&pg=PA40 |title=Introductory horticulture |last2=Shry, Carroll L. |publisher=Cengage Learning |year=2002 |isbn=978-0-7668-1567-4 |page=40}}</ref>