Yas yog undeniably ib qho ntawm cov tshuaj uas muaj zog tshaj plaws hauv lub neej niaj hnub, tiv nrog nws lub cev thiab tshuaj siv tshuaj ruaj khov. Nws pom cov ntawv thov thoob plaws hauv ntim, kev muab khoom siv hauv tsev, ua liaj ua teb, thiab ntau lwm yam kev lag luam.
Thaum tracing keeb kwm ntawm cov yas hloov kho, hnab yas ua si ib tug pivotion. Hauv xyoo 1965, lub tuam txhab Sweden catoroplast patented thiab sau polyethylene hnab yas mus rau kev ua lag luam, nrawm tau cov npe nrov hauv Tebchaws Europe thiab ntaub hnab ntawv.
Raws li cov ntaub ntawv los ntawm United Nations ib puag ncig, nyob rau hauv kev ncua sijhawm tsawg dua 15 xyoos, xyoo 1979 tau ntes qhov zoo tshaj plaws 80% ntawm European bagging lag luam. Tom qab, lawv tau lees tias dominance hla lub ntiaj teb bagging ua lag luam. Thaum xaus ntawm 2020, lub ntiaj teb kev ua lag luam tus nqi ntawm cov hnab yas surpassed $ 300 billion, raws li tau hais los ntawm Grand Saib cov ntaub ntawv tshawb fawb.
Txawm li cas los xij, nrog rau kev siv hnab yas thoob plaws, muaj kev txhawj xeeb ib puag ncig tau pib tawm ntawm lub ntsuas loj. Nyob rau hauv 1997, Pacific Khib nyiab thaj tau nrhiav pom, feem ntau muaj cov khib nyiab pov tseg rau dej hiav txwv, suav nrog cov hwj yas yas thiab hnab yas.
Sib ntaus sib piv rau $ 300 billion ua lag luam tus nqi, cov khoom siv ntawm cov khib nyiab yas hauv dej hiav txwv ua ntej ntawm 2020, thiab yuav nce ntxiv 11 lab tons ib xyoos tom qab ntawd.
Txawm li cas los xij, kev tsoos ib txwm plastics, vim lawv cov kev siv dav dav thiab tshuaj lom neeg rau ntau yam siv, txuas nrog kev tsim khoom thiab tus nqi sib tw, ua pov thawj nyuaj los hloov tau yooj yim.
Yog li ntawd, hnab yas biodegradable muaj cov khoom siv dag zog lub cev thiab tshuaj lom neeg zoo nkauj, tso cai rau lawv daim ntawv thov siv cov xwm txheej yas uas muaj tam sim no. Ntxiv mus, lawv txiav txim sai sai nyob rau hauv cov xwm txheej ntuj, txo kev ua qias tuaj. Yog li ntawd, hnab yas biodegradableable tuaj yeem suav hais txog kev daws teeb meem zoo tshaj plaws tam sim no.
Txawm li cas los xij, kev hloov pauv ntawm qub mus rau tus txheej txheem tshiab yog feem ntau yog ib qho zoo kawg nkaus, tshwj xeeb yog thaum nws muaj kev hloov pauv plastics, uas yog tus thawj ntau yam lag luam. Cov tub ua lag luam tsis tau paub nrog cov khw muag khoom no yuav ua rau muaj kev tsis ntseeg txog qhov ua tau ntawm biodegradable plastics.
Qhov tshwm sim thiab kev loj hlob ntawm ib puag ncig tiv thaiv lub tswv yim lub tswv yim qia los ntawm qhov xav tau chaw nyob thiab mitaily ib puag ncig kev ua qias tuaj. Cov chaw lag luam loj tau pib embracing lub tswv yim ntawm ib puag ncig kev ruaj khov, thiab lub hnab yas ntim kev lag luam tsis muaj kev zam.
Lub Sijhawm Post: Jun-28-2023
