Uthetha malunga nantoni na ukuhlaziywa kwemvelo kuye kwadlula iminyaka emininzi. Nangona kunjalo, kwakukuphela kwee-70s zekhulu lokugqibela ukuba uhlalutyo lwengxaki luqalisiwe ukususela kwindawo yokujonga. Ngeli xesha, phantse kuwo onke amazwe athuthukileyo, izakhiwo ezikhethekileyo zaqala ukudala ezifunekayo ukujongana neengxaki zokulondolozwa kwendalo. Kule ngongoma ukuba ukuhlaziywa kwemvelo kuye kwafikelela kwinqanaba apho kungenakwenzeka ukungazihoxisi izinto ezimbi. Kufuneka kuqatshelwe ukuba kwiminyaka edlulileyo iindawo zendalo zendawo zenzeke kumazwe ahlukeneyo nakwiindawo ezahlukeneyo.
Ewe, le ngxaki yaziwa ngabantu ngokude. Ukuba siyazibuza ukuba yiyiphi inkunkuma eyenziwa ngengqiqo, ngoko iimpendulo ziya kuhluka. Sekunjalo kwimiphakathi yasendulo, abalimi bajongene nengxaki yokunciphisa umhlaba. Ngolawulo olungaphelelanga lwezolimo iminyaka emininzi, amasimi anciphisa izivuno zawo kwizibonakaliso ezibalulekileyo. Abantu babengenakukhetha ngaphandle kokufudukela kwenye indawo baze baqale kwakhona. Le ndlela yokusinda, okanye mhlawumbi ayinakubizwa, yayisetyenziswa kwixesha elide lembali. Nangona kunjalo, ngokukhula koluntu, ukulungele ukulima umhlaba kwakunqongophala.
Ngokwezinzululwazi zaseBrithani, ngo-1750 inani labantu behlabathi lalingabantu abayizigidi ezingama-500 kuphela. Ngo-2002, kwakukho abantu abangaphezu kwezigidi eziyi-6. Ngomnyaka weshumi elinesithathu, eli nani lidlulile ibha yeebhiliyoni ezi-7. Ukwanda kwenkohlakalo okunjalo kukutshintsha kakhulu umgangatho wendawo yokuhlala. Wonke umntu oza kumava ehlabathini, kwinqanaba elithile, yintoni ukuchithwa kweendawo eziphilayo. Namhlanje, kwiindawo ezininzi ezinabantu abaninzi baseYurophu, e-Asia nase-Afrika, ingxaki yokubonelela abantu ngamanzi okusela amaninzi. Okwangoku, imilambo iyomile ngenxa yokukhungulwa kwamahlathi amaninzi.
Ngokwezibalo ezenziwa ngoncedo lweemathematika, ummandla wehlathi uguqulwa ngamaphesenti angama-50% xa kuthelekiswa nomfanekiso owawuneminyaka engamawaka amahlanu edlulileyo. Namhlanje, amahlathi atyulwa ngamandla. Ngenxa yoko, ukuhlaziywa ngokukhawuleza kwehlabathi lezilwanyana kwenzeka. Izilwanyana zinyamalala ngejubane elibi. Kule ngxaki, kufuneka sidibanise ukuba umthamo womdaka wabantu ukhula ngokukhawuleza. Ukuthetha ngokufuziselayo, iplanethi yethu iya kuba yindoda enkulu. Zonke ezi ngxaki azikwazi ukuphazamisa inxalenye yenkqubela yabantu, kwaye amanyathelo athile sele athatyathwa.
Ngoku, xa abaninzi bebanolwazi oko kuthotywa, iiprogram ezahlukahlukeneyo ziphuhliswa ukuphucula imeko yangoku. Kwi- UN, kuye kwadalwa isakhiwo esikhethekileyo, esenza umsebenzi obanzi ngokubanzi kule ndlela. Ibhunga leengcali ezihlukeneyo kunye neekomishoni ziye zadalwa ukuba zivandlakanise iiprojekthi eziza kutsalwa kunye nokusebenza namashishini akhona. Umbutho oqingqileyo wendalo esingqongileyo u-Greenpeace uqhuba uphando kwaye uphume iimviwo kuzo zonke iingxaki. Kukho izizathu zokukholelwa ukuba uluntu luya kufumana indlela yokuphuma kule meko.