ʻO ka Honua wale nō ka honua a mākou e ʻike nei hiki ke kākoʻo i kahi ʻenehana holomua, akā ua nānā iki ʻia i ka hiki, ma kahi o 4.5 biliona mau makahiki, ua hoʻopuka ko mākou honua i hoʻokahi a ʻoi paha o ka lāhui hana.
ʻO Climatologist ʻo Gavin Schmidt, ka luna o NASA's Goddard Institute for Space Studies, me Adam Frank, he ʻepekema ma ke Kulanui o Rochester, ua hoʻoholo e noiʻi i kēia manaʻo a kākau pū kekahi Haawina kapaia "ʻO ke kuhiakau Silurian: hiki paha ke ʻike i kahi lāhui ʻenehana i ka moʻolelo kālaihonua?"
ʻO ka huaʻōlelo "Silurian" i hōʻaiʻē ʻia mai ka moʻo ʻepekema Pelekane Pelekane "kauka Owai la ka mea", e pili ana i ka lāhui reptilian i noho ma ka honua i mau miliona mau makahiki ma mua o ka puka ʻana mai o ko mākou kaiāulu.
Paʻi ʻia i loko o ka International Journal of Astrobiology, wehewehe ka pepa i ke ʻano o ka pūlima e hiki ai i kahi ʻano loea ʻenehana ke haʻalele iā ia. Hoʻohana ʻo Schmidt lāua ʻo Frank i nā kuhi i kuhi ʻia o ka Anthropocene, ka wā e kū nei ka hana a ke kanaka i nā kaʻina honua, e like me ke aniau a me nā meaola, i alakaʻi no ka mea a mākou e manaʻo ai mai nā lāhui ʻē aʻe.
He mea pono e hoʻomanaʻo i kēlā me kēia manawa e hōʻike ana i nā hale nunui ʻaʻole paha e mālama ʻia i loko o nā makahiki he ʻumi miliona o ka hana kālaihonua, pili kēia i ka lāhui kanaka a me nā mea hiki mua o ka "Silurian" ma ka Honua.
Akā, noi ʻo Schmidt lāua ʻo Frank e ʻimi i nā hōʻailona ʻino hou aʻe, e like me nā huahana o ka ʻai ʻana o nā wahie fossil, nā hanana hoʻopau nui, ka haumia ea, nā mea synthetic, nā sedimentation i hoʻoneʻe ʻia o ka hoʻomohala mahiʻai a i ʻole ka hoʻoneoneo ʻana a me nā isotop radioactive i hoʻokumu ʻia e nā pōkā nukelea. .
"Pono maoli ʻoe e luʻu i loko o nā ʻano like ʻole a ʻohiʻohi i nā mea āu e ʻike ai," wahi a Schmidt. "Pili ia i ke kemika, sedimentology, geology a me kēia mau mea āpau. Kupaianaha maoli ia ”, ua hoʻopili akuʻo ia.
Kaulike Drake
Pili ka ʻatikala a nā ʻepekema i ke kuhiakau o Silurian i ka Kaulike Drake, kahi ala kūpono e koho ai i ka helu o nā lāhui akamai i ka Milky Way, i hoʻomohala ʻia e ka astronomer kaulana ʻo Frank Drake i 1961.
ʻO kekahi o nā loli nui i ka hoʻohālikelike ka manawa e hiki ai i nā lāhui ke hoʻoili i nā hōʻailona i hiki ke ʻike ʻia. ʻO kahi kumu i hāpai ʻia no ka hiki ʻole ke launa pū me kahi lāhui malihini ʻo ia kēia loli lōʻihi lōʻihi hiki ke lilo i pōkole loa, no ka mea ʻo technologically holomua civilisations self-destruct a no ka mea ua aʻo lākou e ola hoʻomau i kā lākou home honua.
Wahi a Schmidt, hiki paha i ka wā i ʻike ʻia o ka lāhui ke ʻoi aku ka pōkole ma mua o kona lōʻihi maoli, no ka mea, ʻaʻole hiki iā mākou, ke kanaka, ke noho lōʻihi ma ka hana ʻana i nā ʻano mea a mākou e hana nei. Kū mākou no ka mea ua wili mākou a aʻo paha ʻaʻole.
Eia nō naʻe, ʻo ka pahū o nā hana, ʻōpala a me nā nui o nā ala, he ʻoiaʻiʻo, he wā pōkole loa ia o ka manawa. Malia paha ua hana ʻia he piliona manawa i ka Universe, akā inā 200 mau makahiki ka lōʻihi o kēlā me kēia manawa, ʻaʻole mākou e nānā iā ia.
Kuhiakau Silurian
Kūpono ka manaʻo like no kēlā me kēia lāhui i hala aku nei i ʻike ʻia ma ka Honua, e hāʻule wale i nā wahi i hōʻino ʻia a i ʻole e hōʻemi i nā hana e hoʻoweliweli i kona ola pono. Aia nō kekahi mau haʻawina not-so-maʻaleʻale hiki i nā kānaka ke huki mai kēia ala bifurcated ʻo ia, ma hope o nā mea āpau, kahi mana ʻoihana o ka mantra evolution evolution kahiko: hoʻomaʻa a make paha.
ʻO kēia, no Schmidt lāua ʻo Frank, kekahi o nā poʻomanaʻo kikowaena o ke kuhiakau Silurian. Inā hiki iā mākou ke noʻonoʻo i ka manawa ʻaʻole mākou ka Terrans mua e hana i kahi ʻōnaehana holomua ʻenehana, maliʻa paha hiki iā mākou ke mahalo i ka weliweli o kā mākou kūlana i kēia manawa.
"ʻO ka manaʻo e pili ana i ko mākou wahi i ka Universe ka holomua o kēia ka hoʻokaʻawale ʻana iā mākou iho mai ke aʻo ʻana," Wahi a Schmidt, e hōʻike ana i nā manaʻo kahiko, e like me ke ʻano geocentric o ke ao holoʻokoʻa. "Ua like ia me ka haʻalele mālie ʻana mai kahi nānā pilikino ponoʻī, a ʻo ke kuhiakau Silurian he ala hou ia e hana ai."
"Pono mākou e mākaukau a hāmama i nā ʻano hiki āpau, inā hiki iā mākou ke ʻike i ka mea maoli a ka Universe e hāʻawi mai ai iā mākou," Pau ʻo Schmidt.
