[[Lêer:AIRS Methane.png|duimnael|Gemiddelde metaankonsentrasie in die troposfeer 2006–2009]]
'''Kweekhuisgasse''' is gasse in die [[Aarde se atmosfeer]] wat [[radiasie]] in die termiese [[infrarooi]] band [[absorpsie (elektromagnetiese radiasie)|absorbeer]] en [[uitstraling (elektromagnetiese radiasie)|uitstraal]]. Hierdie proses is die fundamentele oorsaak van die [[kweekhuiseffek]].<ref>{{cite web|url=http://www.ipcc.ch/pdf/assessment-report/ar4/syr/ar4_syr_appendix.pdf|format=PDF|title=IPCC AR4 SYR Appendix Glossary|accessdate=14 Desember 2008}}</ref> Die vernaamste kweekhuisgasse in die Aarde se atmosfeer is [[waterdamp]], [[koolstofdioksied]], [[metaan]], [[laggas]] en [[osoon]]. In die sonnestelsel bevat die atmosfere van [[Venus]], [[Mars]] en [[Titaan (maan)|Titaan]] ook gasse wat die kweekhuiseffek veroorsaak. Kweekhuisgasse het 'n geweldige invloed op die temperatuur van die Aarde se atmosfeer; sonder hierdie gasse sal die Aarde se oppervlakte gemiddeld 33°C kouer wees.<ref>Note that the Greenhouse Effect produces a temperature '''increase''' of about 33 °C (59 °F) with respect to black body predictions and not a '''surface temperature''' of 33 °C (91 °F) which is 32 °F higher. The average surface temperature is about 14 °C (57 °F). Also note that both the Celsius and Fahrenheit temperatures are expressed to 2 significant figures even though the conversion formula produces 3.</ref><ref>{{cite journal |author=Karl TR, Trenberth KE |year=2003 |title=Modern Global Climate Change |url=http://www.sciencemag.org/cgi/content/abstract/302/5651/1719 | journal=Science |volume=302 |issue=5651 |pages=1719–23 |doi=10.1126/science.1090228 |pmid=14657489}}</ref><ref>{{cite book |author=Le Treut H, Somerville R, Cubasch U, Ding Y, Mauritzen C, Mokssit A, Peterson T and Prather M|year=2007 |url=http://www.ipcc.ch/pdf/assessment-report/ar4/wg1/ar4-wg1-chapter1.pdf |title=Historical Overview of Climate Change Science In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt KB, Tignor M and Miller HL, editors) |format=PDF |publisher=Cambridge University Press |accessdate=14 Desember 2008}}</ref><ref name="h2o">[http://nasascience.nasa.gov/earth-science/oceanography/ocean-earth-system/ocean-water-cycle NASA Science Mission Directorate article on the water cycle]</ref>
Die verbranding van [[fossielbrandstof|fossielbrandstowwe]] sedert die begin van die [[Industriële Revolusie]] het die vlakke van koolstofdioksied in die atmosfeer beduidend laat toeneem.<ref name="cdiac">[http://cdiac.ornl.gov/pns/faq.html Frequently Asked Global Change Questions], Carbon Dioxide Information Analysis Center</ref>
