Urhulumente ozayo kaBiden uthe uza kusebenzisana nezolimo zaseMelika ukulwa notshintsho lwemozulu. E-Iowa, le yinto engaqhelekanga: isixa esikhulu samafutha efosili sitshiswa ngoku ukuvelisa ukutya kwemfuyo kunye ne-ethanol, eyona mveliso iphambili yokulima umhlaba kweli lizwe. Ngethamsanqa, isicwangciso sikaBiden sisenzo nje ngoku. Oku kusinika ixesha lokucinga ngendlela yokutshintsha imeko-bume ngendlela ezuzisa indalo kunye nabantu esiphila nabo.
Uphuhliso lwetekhnoloji lunokuvumela imithombo yamandla avuselelekayo (umoya kunye nelanga) ukuba idlule kwiifosili ukuze kufezekiswe ukuveliswa kombane ngokufanelekileyo. Xa kuthelekiswa nokuvela kwezithuthi zombane, oku kuya kunciphisa imfuno ye-ethanol, efuna ngaphezulu kwesiqingatha sombona wase-Iowa kunye nesinye kwisihlanu somhlaba. Abantu bayazi ukuba i-ethanol ibikho kule mihla. Kwanangoku uMonte Shaw, umlawuli ophetheyo we-Iowa Renewable Fuel Association, wakwenza kwacaca kwasekuqaleni kowama-2005 ukuba i-ethanol yengqolowa "yibhulorho" okanye ipetroli yotshintsho kwaye ayisayi kubakho ngonaphakade. Njengoko ukusilela kwe-ethanol ye-cellulosic kuba yinyani, lixesha lokuba kuthathwe amanyathelo. Ngelishwa, kwimeko-bume e-Iowa, eli shishini alikaze lisayine ifomu ethi "musa ukubuyisela".
Khawuthelekelele ukuba izithili ezingama-20 e-Iowa zinommandla ongaphezulu kwe-11,000 square miles kwaye zivelisa umbane ohlaziyekayo ngaphandle kokukhukuliseka komhlaba, ungcoliseko lwamanzi, ukulahleka kwezibulali-zinambuzane, ukulahleka kwendawo yokuhlala, kunye nemveliso yegesi yegreenhouse ngenxa yokutyala umbona. Olu phuculo lukhulu lokusingqongileyo lusezandleni zethu. Khumbula ukuba umhlaba osetyenziselwa amandla omoya kunye nelanga unokufezekisa ezinye iinjongo ezibalulekileyo zokusingqongileyo ngaxeshanye, njengokubuyisela amathafa amade engca, okuya kubonelela ngendawo yokuhlala yezilwanyana zasekhaya, kubandakanya amabhabhathane e-monarch, afunyenwe kutshanje e-United States Iinkonzo ezifanelekileyo zeentlanzi kunye nezilwanyana zasendle zeentlobo ezisengozini yokuphela. Iingcambu ezinzulu zezityalo zengca ezihlala ixesha elide zibopha umhlaba wethu, zibambe kwaye zivalele iigesi zegreenhouse, kwaye zibuyisele ubume bezinto eziphilayo kwindawo ekhoyo ngoku elawulwa ziindidi ezimbini kuphela, umbona kunye neesoya. Kwangaxeshanye, ukuhamba komhlaba e-Iowa kunye nokuhlafuna ikhabhoni kusemandleni ethu: ukuvelisa amandla asebenzisekayo ngelixa kunciphisa ukufudumala kwehlabathi.
Ukuze sifezekise lo mbono, kutheni singaqali sijonge ngaphezulu kwe-50% yomhlaba weefama wase-Iowa ophethwe ngabantu abangengabo abezolimo? Mhlawumbi abatyali-mali abanandaba nokuba umhlaba ungenisa njani ingeniso-idola yombane isetyenziswa lula eWest Des Moines, eBettendorf, eMinneapolis okanye ePhoenix, kwaye kulapho uninzi lwabanini bemihlaba yethu bahlala khona, Kwaye idola enye ivela ekutyaleni nasekugayeni umbona.
Nangona iinkcukacha zomgaqo-nkqubo zinokuba ngcono ukuba zishiywe kwabanye ukuba bazisebenzise, ​​singacinga ukuba ukuncitshiswa kwerhafu okanye irhafu entsha kuya kukhuthaza olu tshintsho. Kule ntsimi, amasimi ombona asetyenziswa ziiturbine zomoya okanye amadlelo akhiwe ngokutsha ajikeleze iiphaneli zelanga. Yitshintshe. Ewe, irhafu yepropathi iyanceda ekugcineni iidolophu zethu ezincinci kunye nezikolo zazo, kodwa umhlaba olinyiweyo e-Iowa awusahlawuliswa irhafu eninzi kwaye uxhamla kumgaqo-nkqubo werhafu yelifa olungileyo. Ukuqeshisa umhlaba neenkampani zamandla kunokwenza okanye kubenze bakhuphisane ngerenti yokuvelisa izityalo zasentsimini, kwaye amanyathelo anokuthathwa ukugcina iidolophu zethu zasemaphandleni. Kwaye ungalibali ukuba ngokwembali, umhlaba wase-Iowa ngohlobo lweenkxaso-mali ezahlukeneyo zefama ube kukunciphisa irhafu karhulumente: ukusukela ngo-1995, i-Iowa ibimalunga ne-$1,200 ngehektare, iyonke ifikelela kwi-35 yeebhiliyoni zeerandi. Idola. Ngaba le yeyona nto ilungileyo ilizwe lethu elinokuyenza? Sicinga ukuba akunjalo.
Ewe, singacinga ukuba imboni yezolimo iyayichasa kakhulu le nguqu ekusetyenzisweni komhlaba. Kaloku, umhlaba osetyenziselwa ukuvelisa umbane awufuni mbewu zininzi, amafutha, izixhobo, iikhemikhali, izichumisi okanye i-inshurensi. Basenokukhala kuthi. Okanye echibini. Kulusizi kubantu base-Iowa, abakhange bakhathalele namnye kubo okwangoku. Jonga ngokusondeleyo umsebenzi abawenzileyo kwiindawo zasemaphandleni zase-Iowa kwiminyaka engama-50 edlulileyo. Ngaba le yeyona nto ilungileyo imboni enamandla, enxulumene nezopolitiko enokuyenza kwidolophu encinci e-Iowa? Sicinga ukuba akunjalo.
Amandla avuselelekayo angenza iindawo zasemaphandleni zase-Iowa zibe nenkangeleko entsha ngokupheleleyo: ukuphucula umsebenzi, ukuphucula umoya, ukuphucula imithombo yamanzi, nokuphucula imozulu. Kwaye ne-monarch.
U-Erin Irish ngunjingalwazi oncedisayo webhayoloji kwiYunivesithi yase-Iowa kwaye lilungu lebhodi yeengcebiso yeZiko lezoLimo oluZinzileyo laseLeopold. UChris Jones yinjineli yophando kwi-IIHR-Water Science and Engineering School kwiYunivesithi yase-Iowa.