A kwanan nan, ayyukan anthropogenic sun ci gaba da kara yawan carbon dioxide na yanayi; game da 30-40% na kara CO2 an sha da tekuna, samar da carbonic acid da kuma rage pH (yanzu kasa da 8.1) ta hanyar wani tsari da ake kira teku acidification. pH ana sa ran isa 7.7 (wakiltar wani 3-karin a hydrogen ion taro) da shekara 2100, wanda yake shi ne wani gagarumin canji a cikin wani karni. Daya muhimmanci kashi domin samuwar kwarangwal abu a cikin marine dabbobi ne alli, amma alli carbonate ya zama mafi soluble da matsa lamba, don haka alli carbon da kwarangwal dissolve kasa da ta zurfin. alli carbonate kuma ya zama mafi soluble a ƙananan pH, don haka alkaline teku acidification ne wata ila ya yi zurfi tasiri a kan marine dabbobi, samar da carbon acid (yanzu kasa da 8.1) ta hanyar wani tsari da ake kira teku acidification.
8.2 Ƙungiyar