Kua huri koe i tētahi huarahi hou kua wharikihia, ā, ka whakaaro koe me pēhea te hurihanga o te ranunga toka hina, puehu hei papa pango maeneene i raro i ō potae? Ko te whakautu poto kei roto i tētahi kete mahi taumaha: he wheketere whakaranu uku. Engari he aha te wheketere whakaranu uku , ā, he aha i whakaarohia ai e ngā miihini te ngākau o ngā mahi rori hou katoa? Noho tonu—mā tēnei ruku hohonu e wehewehe te kupu matua mai i te mea nui.
I te reo Pākehā māmā, ko te wheketere whakaranu uku he wheketere e whakaranu ana i ngā konganuku wera (arā, te kōhatu kuru, te onepu, te kirikiri rānei) me te uku wai hei whakaputa uku wera (HMA). Me wehe te ranunga mai i te mira mira i te pāmahana 150–180 °C pea kia pai ai te mahi i runga i te taraka ki te papa mahi. Ki te kore e tutuki taua pāmahana, ka rongo koe i te karanga a te kaiwhakahaere, "He para taua uta, e hoa!"—whakapono mai, kāore he kaimahi kirimana e hiahia ana ki te kai i taua utu.
Kāore he mea kotahi e tau ana ki te katoa i konei. Ka tū ngā tipu pūmau ki te taha o ngā rua keri mō ngā tekau tau, ka pupuhi i te 200–400 tāne ia hāora; ka hono ngā tipu neke ki ngā tipu iti ka pekepeke mai i te rohe ki te rohe. Mena he 5 kiromita te tawhiti o tō kaupapa ki tuawhenua, he nui rawa te kawe i tētahi mea nunui 200-tāne i ngā rau maero. I tētahi atu taha, ko ngā kaupapa nunui o te tāone e hiahia ana ki te kaha ka taea e tētahi pourewa pūmau anake te tuku. Ko te mahi nui ko te whakataurite i te putanga ki te wātaka, kaua ko te utu mō ia tāne anake.
Ae ra. Ka paunatia e ngā tipu puranga ia kai ki te kirokaramu, ka hoatu he tunu tika mō ngā ara rere i te taunga rererangi. Ka oma tonu ngā mīhini whakaranu pahu, ka whakaiti i te whakapaunga pūngao me te wā noho silo—he tino pai mō ngā huarahi roa. Kei waenganui ngā tipu whakaranu tonu, e whakataurite ana i te tika me te kaha whakaputa. Ko te whiriwhiri i te whirihoranga hē he rite ki te whakamahi i te hama sledge ki te thumbtack: ka mahi, engari he paru, he utu nui.
Kāore ngā tipu hou e rite ana ki ngā taniwha pupuhi auahi o ngā tau 70. Inaianei, ka whakakapia e ngā ara uku hangarua (RAP) te 60% o te konganuku tauhou. Ka whakaitihia e ngā tāpiringa ranunga mahana te whakamahinga wahie ki te 15%, ā, ka whakaitihia ngā tukunga CO₂ tata ki te ōrite te tawhiti. Nō reira, kāo, mā te whai tipu whakaranu koe e hanga hei tangata kino taiao o te rohe—ki te mea kei a koe te pūnaha hangarau tika.
E $2.5 miriona te utu o tētahi waeine rahi-waenga 160 tana ia hāora. He ahua whakamataku, tika? Me whakaaro ki te mana o te tuku katoa, ngā utu taraka iti iho, me te utu nui ka taea e koe te utu mō te ranunga tika-i-te-wā, ā, ko te utu whakahoki e tata ana ki te 1.2 miriona tana i whakaputaina—tata ki te rua ngā wā i runga i tētahi ara nui o te kawanatanga. Heoi, ki te kore e whakawhitihia te hinu kua whakaritea, ka tere ake te utu whakahoki i te uku tahua i te ahiahi 40 °C. (Āe, kua kite ahau i tēnei mea e tupu ana.)
Ka whakarerekēhia e ngā panera PLC te whakarerekētanga o te mura me te rere o te bitumen i te wā tūturu, engari me whai tonu koe i tētahi kaiwhakahaere ka taea te "whakarongo" ki ngā kaikawe. Ka taea e tētahi mea pai te hongi i ngā whitiki kua wera i mua i te hinganga o te pūoko; ka tuhia e tētahi mea pai ngā au o ngā raraunga i ia nekehanga kia taea ai e koe te matapae i ngā hapa, kaua e whaia. Kāore te aunoatanga e whakakapi i te tangata—e hoatu ana ki a rātou ngā mana nui.
Tāpirihia he tohu pene peita ki ia hononga; ina hē te rārangi, ka kite wawe koe. Me pania ngā rārangi hinu i te hotoke? Whakamahia he pū wera whero-whero hei kite i ngā mea e ārai ana, kaua e pakū ngā taputapu pērā i ngā kōkī champagne. Ā, tēnā, hurihia ō papa mata—ko te papa o runga i tēnei rā ka noho hei papa tiaki i te hauwhā e whai ake nei. Ka mihi atu tō āhua o muri mai (me tō tahua) ki a koe.
Kia tumanakohia ngā mura kua rite mō te hauwai me ngā tipu hiko katoa i roto i te tekau tau. Mā ngā māhanga matihiko—he tauira mariko o tō tipu—ka taea e koe te whakamātautau i ngā tohutao i te ao matihiko i mua i te tahunga i te rita tīhiera. Ka whiwhi ngā kaiwhakamahi wawe i ngā kirimana huarahi matomato; ka mātakitaki ngā kaiwhakamahi tōmuri mai i te pakihiwi kirikiri.
Nō reira, ā te wā e pātai noa mai ai tētahi, "He aha te wheketere whakaranu uku?"—āe, i tukua e au taua wetereo kia ngaro noa—ka taea e koe te menemene me te kī, "Koia te hoa puku i ia haerenga e mahia ana e koe."