Algele
Deşi nu sunt foarte cunoscute în Europa, algele sunt folosite pe post de mâncare în Japonia şi China, dar acolo mai sunt utilizate şi ca hrană pentru animale şi îngrăşământ. Algele ar putea înlocui şi combustibilii tradiţionali, mai ales pentru că poate rezista în condiţii vitrege. Plantele sunt simple şi pot să se dezvolte în ape poluate şi pe terenuri unde alte plante ar muri. Marile companii de transport aerian investesc în cercetarea acestei tehnologii. Cercetătorii spun că în condiţii ideale, o fermă de alge ar putea produce de la 160 la 315 tone de combustibil pe jumătate de hectar, în comparaţie cu 11 tone de biocombustibil pe bază de etanol.
Insectele
Viitorul, spune articolul din „The Observer”, stă în lăcuste, păianjeni, viermi, furnici şi gândaci şi plus alte încă 1.400 de specii care se consumă deja în ţări din Asia, Africa şi America latină. În plus, acestea sunt pline de proteine, calciu şi au foarte puţine calorii. Astfel, fermele de insecte ar putea deveni o realitate în Europa, mai ales că preţul de întreţinere este mic.
Carnea artificială
Carnea artificială ar fi o altă soluţie împotriva foametei. Astfel, cercetătorii încearcă să creeze carne artificială din celule stem. Succesul în privinţa acestei tehnologii ar putea apărea din Marea Britanie sau Olanda, unde se studiază această tehnică.
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