Even though sub-Saharan Africa often evokes images of drought and famine, researchers say that the area is the home of more than 2,000 grains, vegetables, roots, fruits, and other foods that have the possibility for feeding the continent, even other parts of the world.
have the possibility for feeding the continent, even
have the possibility of feeding the continent, even of
could feed the continent, so even with
could feed the continent and even
could possibly feed the continent and, in addition, for even
"Can" means that these foods can actually feed the continent and/or other parts of the world right now. I.e., there's not just a potential; the foods are actually present in sufficient quantity to feed the entire continent NOW.
"Could" refers to a potential that may not yet have been realized.
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