Local authorities in Vigo want to cut down 450 black poplars, so as to avoid allergies.
But, in fact, some university teachers think that these trees are the ones who best absorbe carbon dioxide. In many countries black poplars are considered a symbol to fight pollution.
But, in fact, some university teachers think that these trees are the ones who best absorbe carbon dioxide. In many countries black poplars are considered a symbol to fight pollution.
