Amazwe akwi-latitude + - 35 maqondana ne-Ecuador aziwa njenge izifunda zelanga noma zelanga ngoba banamazinga aphezulu emisebe yelanga ngonyaka emhlabeni.
Amazwe abaluleke kakhulu asesibhakeleni selanga yiChina, India, South Africa, Brazil, Mexico. Inani eliphelele lamazwe eliqukethe yi-148.
Lawa mazwe amele ama-75% wabantu emhlabeni njengoba behlala cishe abantu abayizigidi eziyizinkulungwane ezinhlanu.
Lawa mazwe anezici ezifanayo ezifana nokuthi ayizizwe ezinesibalo esikhulu sabantu, zisenqubweni ebalulekile yokuthuthukiswa kwezimboni nokukhula komnotho ngakho-ke kukhona ukwanda okubaluleke kakhulu kwamandla.
Kepha okunye ukufana yi amandla we-photovoltaic elanga abanazo ngenxa yezimo zabo zezulu ukuze bakwazi ukukhiqiza amandla amakhulu hhayi kuphela ukuphakela lesi sifunda kepha nokuthekelisa kwezinye izindawo zomhlaba.
Kunentshisekelo enkulu yamazwe omhlaba kulesi sifunda, ngakho-ke kunezinkampani ezingenakubalwa ezitshala imali kuzo amandla elanga, ngoba ukuthuthukiswa kwalobu buchwepheshe kulesi sifunda kusekuncane kakhulu.
Njengamanje kuphela i-9% yokufakwa kwelanga emhlabeni okusemazweni akha ibhande lelanga. Okukhombisa konke okudingeka kwenziwe ukuqhubekisela phambili nokuthuthukisa imboni ye-photovoltaic yelanga kulesi sifunda. Njengoba ingeke isize kuphela ukukhiqiza ugesi omningi ozosetshenziswa kepha izoyivumela futhi ukuthi ithuthukise izinga lempilo yengxenye enkulu yabantu abasezikhundleni zobuphofu obukhulu kanye nokuqinisa umnotho wendawo.
Ngaphandle kweChina, etshala imali kakhulu emandleni elanga, ezinye izizwe zibuthakathaka kakhulu emandleni azo ukukhiqizwa kwamandla.
Ukuthuthukiswa kwaleli bhande elanga kuzobaluleka hhayi kuphela emazweni alwakhayo kodwa nakwabanye.