Xyoo ob peb lub xyoo dhau los no, Neeg Asmeskas tau raug txwv tsis pub muaj kev sib tw rau hauv Pob Zeb (Tote) ntawm kev tiv thaiv tej chaw tiv thaiv kev tiv thaiv. Peb nquag qhia rau peb tias cov khoom siv ua khoom coj mus muag no zoo heev, vim hais tias lawv tsis muaj teeb meem rau ib puag ncig. Lub hnab ntim ib lub hnab tsis yog ib tus phooj ywg zoo. Txhua qhov chaw ntawm lub teb chaws tau pib txwv kev siv cov hnab yas mus ntaiv kom tsis txhob muaj khib nyiab. Ntau lub tsev muag khoom tsis muab nrog cov hnab yas los yog them nyiaj rau them. Qhov kev tsim ub no tiv thaiv ib puag ncig ntawm lub hnab yog nrov thoob plaws hauv lub tebchaws.
Tab sis lub hnab ntim kua nplaum rau ntawm qhov chaw los ntawm kev raug mob yuav ntau dua lub hnab yas. Xyoo 2008, lub UKEA muab kev tshawb nrhiav ntawm ntau lub hnab khw, nrog rau cov hnab, hnab yas, cov hnab ntim cov ntaub ntawv thiab cov ntaub ntawv xa rov qab PP. Kuj ceeb tias, txhua hnub siv thiab ua haujlwm, cov neeg siv yuav tsum siv cov hnab yas yog tias lawv xav sim txo cov pa phem thiab cov pa carbon emissions, thiab siv tsawg dua ib zaug, xws li cov hnab khib nyiab lossis lwm yam. Cov hnab yas yog ua los ntawm cov hluav taws xob polyethylene (HDPE, feem ntau yog siv nyob rau hauv khw muag khoom noj), thiab nws muaj qhov tsawg tshaj plaws rau tej yam hauv lub hnab yuav khoom. Paj ntaub hnab yog cov phooj ywg zoo tshaj plaws thiab feem ntau cov khoom uas yuav ua rau lub ntiaj teb ua kom sov, vim nws xav tau kev pab ntau dua los tsim thiab thauj.
Cov ntsiab lus ntawm txoj kev tshawb no yog txawv ntawm peb qhov kev xav. Cov hnab yas yog cov khoom zoo li phem, tej zaum dai hauv cov ntoo, qee zaus noj cov tsiaj plhaw, maj mam nyob hauv thaj av, lub nroog tau ntim cov pa phem, thaum kawg hauv cov hnab yas me me mus rau hauv hiav txwv, thiab qhov txheej txheem no yuav kav rau pua pua ntawm xyoo los sis. Txawm tias cov hnab yas tsis yooj yim los thuam, lawv xav tau ib qho nyiaj tsawg tsawg los ua thiab thauj. Muab piv rau daim ntaub thiab hnab ntawv, hnab yas los tsim cov pa carbon tsawg, cov pa phem thiab cov khoom siv. Tsis tsuas yog nws yuav siv tau tab sis kuj pheej yig. Rau tag nrho cov laj thawj no, cov hnab yas siv dav dav hauv peb lub neej. Thiab yuav muaj ntev ntev tom qab tsis siv.
Lub koom haum UK Environment Agency txoj kev tshawb nrhiav xam tias cov nqi ntawm txhua lub hnab yas yog tsawg tshaj li 2 grams carbon emissions. Thiab cov hnab ntawv yuav tsum tau siv xya zaus los txo cov pa roj carbon monoxide los ntawm ib lub hnab ntawv tib qhov qub. Yuav kom ua tau zoo tib yam, siv cov khoom siv PP rov ua dua ntawm Todd lub hnab yuav tsum siv 26 npaug, thiab paj rwb yuav siv 327 npaug (txawm tias qee yam khoom tsis muaj nyob rau hauv qhov uas yuav tau kawm, tab sis peb tuaj yeem xav tias tus tsim ntawm cov hnab yas tote, xws li qhov no, ua rau ntawm cov tawv thiab cov hlau ua dua qub yog qhov tseem ceeb dua qub).
