Bacewar Holocene

Bacewar Holocene, wanda kuma ake magana da shi azaman ɓarnar Anthropocene Wagler, Ron (2011). "The Anthropocene Mass Extinction: An Emerging Curriculum Theme for Science Educators". The American Biology Teacher. 73 (2): 78–83. doi:10.1525/abt.2011.73.2.5. S2CID 86352610. Archived from the original on 2022-02-05. Walsh, Alistair (January 11, 2022). "What to expect from the world's sixth mass extinction". Deutsche Welle. Archived from the original on October 8, 2022. Retrieved February 5, 2022. ko ɓarnar taro na shida, [5] [6] wani lamari ne mai ci gaba da lalacewa wanda ayyukan ɗan adam ke haifarwa kawai a lokacin zamanin Holocene.[7] [8] Wannan taron ɓarkewar ya ƙunshi iyalai da yawa na tsire-tsire[9] [10] [11] da dabbobi, gami da dabbobi masu shayarwa, tsuntsaye, dabbobi masu rarrafe, amphibians, kifi, da invertebrates, suna tasiri duka nau'ikan ƙasa da na ruwa.[12] Yaduwar lalacewar wuraren da ake samun rabe-raben halittu irin su murjani reef da dazuzzukan dazuka ya kara ta'azzara rikicin. Yawancin waɗannan batattu ba su da takaddun shaida, kamar yadda galibi ba a gano nau'ikan ba kafin bacewar su.

Ana ƙididdige ƙimar ɓarna na yanzu a sau 100 zuwa 1,000 sama da ƙimar ɓarna na asalin halitta [13][14] [15] [16] [17] kuma suna haɓaka.[18] A cikin shekaru 100-200 da suka gabata, asarar rayayyun halittu ya kai irin wannan matakan ban tsoro[14] wanda wasu masana ilimin halitta a yanzu sun yi imanin cewa ayyukan ɗan adam sun haifar da bacewar jama'a, [19] [20] ko kuma suna kan hanyar yin hakan.[21][22]. Don haka, bayan ɓarkewar “Big Five”, an kira taron ɓarna na Holocene a matsayin ɓarna ta shida.[23] [24] [25] [26] Duk da haka, idan aka yi la'akari da kwanan nan game da kawar da yawan jama'a na Capitanian, an kuma ba da shawarar kalmar halakar taro ta bakwai.[27][28]

Marigayi Mobintocene ya mamaye shekaru 50,000 zuwa 10,000 da suka gabata), a cikin manyan dabbobi masu shayarwa - har da kashi 81% na Megerierbores. [29] Ana ci gaba da yin muhawara mai ƙarfi game da mahimmancin alaƙar abubuwan da ke tattare da ɗan adam da canjin yanayi, amma wani bita na baya-bayan nan ya kammala cewa akwai ƙaramin shaida ga babban rawar da canjin yanayi da kuma “ƙarfi” shaida ga ayyukan ɗan adam a matsayin babban direba.[31] Misalai daga yankuna irin su New Zealand, Madagascar, da Hawaii sun nuna yadda mulkin mallaka na ɗan adam da lalata wuraren zama suka haifar da babbar hasarar rayayyun halittu.

A cikin karni na 20, yawan bil'adama ya ninka sau hudu, kuma tattalin arzikin duniya ya karu sau ashirin da biyar.[32][33] Wannan lokacin, wanda galibi ana kiransa Babban Haɗawa, ya tsananta bacewar nau'ikan nau'ikan.[34][35] Dan Adam ya zama "mafi girman girman duniya" wanda ba a taba ganin irinsa ba,[36] yana farautar manya manyan mafarauta, mamaye wuraren wasu nau'ikan,[37] da kuma wargaza gidajen abinci.[38] Sakamakon haka, masana kimiyya da yawa sun amince da ra'ayin Paul Crutzen game da Anthropocene don bayyana ikon ɗan adam na duniya.

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