Whakarāpopototia te tuhinga:  Ko te methane, te wāhanga matua o te hau māori, i te nuinga o te wā ka puta mai i te waikura o te matū. Engari he momo kē atu o te hau whakamate, e kiia nei ko te methane kore-ora, e hangaia ana e ngā tauhohenga matū i roto i te kiri i raro i te papa moana. Inaianei kua kitea e ngā kaipūtaiao he nui ngā wai hohonu o te hau hau i te Arctic he putunga mō te metana ā-ora - he hau e 20 ngā wā e kaha ake ana ki te pupuri i te wera i te hāora hāora. Ka hangaia te hau mā tētahi tukanga e kiia nei ko te serpentinisation. Ka puta te whakawai i te wā e pāhono ana te wai moana ki ngā kōhatu pōtae wera i hōparahia i ngā hapa nui i roto i te rākau moana. He haumaru ngā puna, ā, kāore ngā kaipūtaiao i te whakapono ka pā ki te huringa āhuarangi. Engari, e kī ana rātau ka taea e ngā hanganga ōrite te whakamahi i tētahi rā hei rokiroki i te metana, ka taea te whakamahi hei wahie i muri mai. I kitea tata nei tetahi putunga wai i runga i te puku o Knipovich, i te hohonu o Fram Strait o te Moana Arctic. 'E whakaatu ana tēnei rerenga whakarewa pōturi rawa, he tino pai te taiao o te Arctic mō tēnei momo whakaputa methane,' i mea a Joel Johnson, he kaiwhakaako āpiti i te Whare Wānanga o New Hampshire. Ko te Center for Arctic Gas Hydrate, Climate and Environment (Cage) e whakatau tata ana kia 15,000 gigatonnes o te waro ka taea te rokiroki i roto i te ahua o nga hydrates i roto i te papa moana. Kua kitea e nga kaiputaiao nga wai nui o te wai hohonu i roto i te Arctic he putunga mo te methane abiotic <unk> he hau e 20 nga wa e kaha ana ki te pupuri i te wera i te warowaihā. I kitea tetahi o enei putunga i runga i te whakawhitinga o te Knipovich (whakaahua), i roto i te hohonu o Fram Strait o te Arctic Ocean. Engari kāore tēnei tatauranga i te whakaaro ki te metana ā-waiora. Na tera pea he nui ake,' e kii ana te kaiwhakahaere o Cage a Jürgen Mienert. Ko te methane te rua o ngā hau pāmahana nui rawa ki te huringa āhuarangi. E 23 ngā wā e kaha ake ana te hau nei i te hāora hāora ki te pupuri i te wera, ā, kei te whāia tēnei wā e te kāwanatanga hei whakamātau ki te whakaiti i te pāmahana o te ao. Kua heke te poke methane i te 11 ōrau mai i te tau 1990 ahakoa te...
Ko ngā wai nui i te Arctic he kohinga mō te methane kore-ora. E 20 ngā wā e kaha ake ana te methane ki te pupuri i te wera i te hāora hāora. He haumaru ēnei tāke i te mea ka mau te metana ki roto i ngā tāpaetanga. Engari i ētahi atu wāhi kua kitea e ngā pūtaiao he methane e rere ana i raro i te Arctic.