http___www.ikorculainfo.com_net_13534-plasticne-vrecice-traju-vjecno__1.xml
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Advantages of Plastic Grocery Bags It is easy to overlook the advantages of plastic grocery bags due to the perception that they are environmentally unfriendly. While they certainly have ecological drawbacks, plastic grocery bags can be beneficial to retailers, consumers, and even the environment. Advantages of Plastic Grocery Bags for Retailers Retailers for have favored plastic shopping bags as long as they have been available-about 50 years. The main advantages of plastic grocery bags are that they are cost-effective, easy to use, and convenient to store. Plastic bags are available in bulk purchases at a fraction of a cent per piece. In contrast, paper bags typically cost 5 cents or more per piece. Reusable cloth bags, which are gaining in popularity as environmental sustainability becomes a more widespread concern, can cost as much as a few dollars each. In large volume, plastic bags have obvious overhead cost benefits for stores and their profit margins. In addition, plastic bags are quicker to open, pack, and double up than paper bags. While those few seconds may seem nominal, for busy cashiers, this can help keep lines moving efficiently. Plastic bags also require less space than paper bags, both in storage and at cashier stations, and weigh about one-tenth as much. Reusable bags take up the most space, and while their weight varies, they are all considerably heavier than plastic or paper bags. Advantages of Plastic Bags for Consumers Conveniently enough, just as retailers have found plastic bags to be a better option than paper, so too have consumers. The numbers speak for themselves: according to the U.S. Environmental Protection Agency (EPA), Americans use 100 billion plastic shopping bags annually, and the American Forest and Paper Association estimates that Americans use 10 billion paper shopping bags each year. While this preference is gradually changing in light of environmental concerns and the increased use of reusable cloth bags, plastic shopping bags still offer two key benefits: - Plastic bags are more durable than paper bags. They are less prone to tearing, easier to carry, and are far more useful in the rain. - Plastic bags are reusable for a variety of purposes, with many people using them as trashcan liners or to pack and store miscellaneous items. Plastic bags last considerably longer than plastic bags and be rinsed out and repurposed, unlike paper bags. Environmental Impact of Plastic Grocery Bags There has been much disagreement over whether paper or plastic shopping bags are more detrimental to the environment. The truth is, each has advantages and disadvantages when compared to the other. Environmental Advantages There are several important ecological advantages of plastic grocery bags over paper shopping bags. Because they weigh so much less, they contribute far less solid waste to landfills when not recycled. According to the EPA, paper bag production requires 40 percent more energy than the production of plastic bags. Paper bag manufacturing also results in 50 percent more water pollution and 70 percent more air pollution than plastic bag manufacturing. Environmental Disadvantages The main ecological disadvantage of plastic shopping bags is that they are manufactured from petroleum, a non-renewable resource. Paper bags, on the other hand, are made from trees, a renewable resource. Plastic bags are also not biodegradable, and break down into contaminating particles over many hundreds of years. Effect on Marine Life One of the more compelling arguments against the use of plastic shopping bags is that marine life commonly mistakes them for food, and that this results in the death of 100,000 marine animals and 1 million sea birds annually. However, this argument is false. The myth originated from a 2002 study on plastic bags commissioned by the Australian government. In the report, the authors misquoted a previous Canadian study from 1987. The animal deaths cited were actually attributable to fishing lines and nets, not plastic bags. Remember to Recycle Reuse your plastic bags as much as possible. Recycle the rest. By recycling, consumers can avoid many of the drawbacks of plastic bags, such as their contribution to litter and their inability to biodegrade when discarded. There are numerous advantages of plastic grocery bags, and by recycling them diligently, consumers can profit from their use in a more environmentally sustainable manner.
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Prosljeđujem vam ovaj članak i fotografije sa željom da sljedećeg puta u kupovini razmislite koliko plastičnih vrećica trebamo, ako ih uopće i trebamo svaki put. Plastične vrećice traju vječno? Plastične vrećice, kao što svi to znamo su velika prijetnja za okoliš, ali što se poduzima? Znamo da za takve stvari nikad nije kasno, npr u dućanima umjesto plastičnih bi se mogle koristiti papirnate vrećice ili torbe od tkanine. Isto tako moguće je reciklirati plastične vrećice, a da bi to znali moramo se educirati. Prema Vincent Cobbu, prodavači proslijede milijune plastičnih vrećica za kupovinu koje bivaju nakon toga odbačene, zapravo završe u okolini, a razgrađuju se preko 100 godina, prilikom čega polako ispuštaju otrovne kemikalije koje dospijevaju u tlo, jezera, rijeke i oceane. Na kopnu su plastične vrećice jedan od najčešćih vrsta smeća u naseljenim područjima i polako su postale trn u oku za lokalno stanovništvo. Ono nagore što proizlazi iz toga je da plastične vrećice mogu začepiti odvodne sustave i tako izazavati poplave, kao što je to bilo u Bangladešu 1988 i 1998. godine. Kad ih netko baci u more, postaju prijetnja za morski život. Naime, nakon što je prva takva vrećica došla u upotrebu, došlo je do porasta uginulih u morskom svijetu. Na primjer, neke morske životinje, uključujući morske kornjače, dupine, uginule su od posljedica gutanja plastičnih vrećica… Što se tiče oceana, opasnost od zagađenja je tim veća što struje smeće mogu odnjeti na velike udaljenosti. Dakle, ono što se može učiniti umjesto korištenja plastičnih vrećica? Možemo početi koristiti veliku torbu kad idemo u shopping, umjesto uobičajenih plastičnih. Zatim već spomenuta reciklaža plastičnih i sl. Svako malo neka vlada negdje u svijetu zabrani trgovcima prodavati ili prosljeđivati plastične vrećice, no to je još tako mali broj. A zašto? Novac! Vrlo jednostavno, plastične vrećice su popularne, jer su jeftinije, jake i lagane… Dakle, iako vlade mogu djelovati na razne načine kako bi se umanjio utjecaj plastičnih vrećica na okoliš, tako i svatko od nas treba preuzeti odgovornost, odnosno treba se uključiti u kampanju, da smanjimo njihov štetni utjecaj, tako da smanjimo prije svega njihovu proizvodnju, da ih prestanemo koristiti. Jeste li znali? • Plastična vrećica proizvodi se od polietilena, naftnog derivata kojemu treba gotovo 1000 godina da se razgradi. • Kada bi samo svaki peti građanin Hrvatske prestao koristiti plastične vrećice, sljedeća bi generacija u prirodi zatekla 199,588.400.000 vrećica manje • U svijetu se godišnje koristi oko 500 milijardi plastičnih vrećica, odnosno milijun vrećica po minuti • Prosječan građanin troši oko 1.000 plastičnih vrećica godišnje • Toksični dim koji nastaje pri paljenju plastike ubija stotine ljudi svake godine • Pri spaljivanju 4 plastične vrećice potroši se onoliko kisika koliko je potrebno čovjeku za jedan dan • Prilikom razgradnje polietilena nastaju mikroskopske otrovne čestice koje prodiru u hranidbeni lanac, kontaminirajući ekosustave te posljedično, hranu i vodu. • Plastika na poljima zaustavlja prolaz kisika i uzrokuje neplodnost tla • Više od milijun ptica i 100.000 morskih sisavaca ugine svake godine nakon što pojedu ili se zaglave u plastične vrećice • Irska je 2002. uvela takozvani plastax, porez na plastične vrećice kojim se njihova potrošnja smanjila za 90%