M’dziko lamakonoli losamala za chilengedwe, lingaliro la kukhazikika lafikira m’mafakitale osiyanasiyana, ndipo kasamalidwe ka zinyalala ndi chimodzimodzi. Zinyalala za pulasitiki, makamaka mabotolo a polyethylene terephthalate (PET), zimabweretsa vuto lalikulu la chilengedwe. Makina ophwanyira mabotolo a PET ...