Namuhla ama-biofuel asetshenziselwa imisebenzi ethile yezomnotho. Okusetshenziswa kakhulu yilezi i-ethanol ne-biodiesel. Kuyaqondakala ukuthi igesi yesikhutha ekhishwa yi-biofuel ilinganiselwa ngokuphelele ngokumuncwa kwe-CO2 okwenzeka nge-photosynthesis ezitshalweni.
Kepha kubonakala sengathi lokhu akunjalo ngokuphelele. Ngokuya kocwaningo olwenziwe yi-University of Michigan Energy Institute oluqondiswe ngu UJohn DeCicco, inani lokushisa eligcinwe yi-CO2 ekhishwa ngokushisa ama-biofuels alihambisani nenani le-CO2 elimunce izitshalo ngesikhathi senqubo ye-photosynthesis njengoba izitshalo zikhula.
Ucwaningo lwenziwe ngokususelwa kudatha evela ku- UMnyango Wezolimo wase-United States. Izikhathi zahlaziywa lapho ukukhiqizwa kwe-biofuel kwaqina khona futhi ukumuncwa kwekhabhoni dioxide ezitshalweni kwaqeda kuphela Ama-37% okuphelele kokukhishwa kwe-CO2 okukhishiwe ngokushisa ama-biofuels.
Okutholakele ezifundweni zaseMichigan kuphikisa ngokusobala ukuthi ukusetshenziswa kwe-biofuel kuyaqhubeka nokwandisa inani le-CO2 ekhishwa emkhathini futhi ayinciphanga njengoba bekucatshangwa ngaphambili. Yize umthombo wokukhishwa kwe-CO2 uvela kwi-biofuel efana ne-ethanol noma i-biodiesel, ukukhishwa kwenetha emkhathini kungaphezu kwalokhu okumunce izitshalo zezitshalo, ngakho-ke kuyaqhubeka nokwandisa umphumela wokushisa komhlaba.
UJohn DeCicco uthe:
'Lesi yisifundo sokuqala ukuhlola ngokucophelela ikhabhoni ekhishwe emhlabeni lapho kutshalwa khona ama-biofuels, kunokucabanga ngakho. Uma ubheka ukuthi kwenzekani empeleni emhlabeni, uzothola lokho ikhabhoni enganele lokho kususwa emkhathini ukulinganisela okuphuma esihlokweni somsila. "