14

The cheapest reusable bags round here are made of the same plastic as disposable bags. In this case the number of uses required is simply the ratio of the weights. Without getting the scales out I think this is around 10-20 times. They're also bigger so that's not even 10-20 shopping trips unless you only ever buy a little. I know I've had a few hundred uses ...


12

First of all, it sounds like there might be some confusion regarding the claim. As I read it, the claim is not that steel is inherently better than plastic. It's not an apples-to-apples comparison. The claim is that one reusable steel bottle is better than continually buying many disposable plastic bottles. Certainly, one steel bottle has a much bigger ...


10

Some countries have introduced a tax on plastic shopping bags. For example, in Ireland the tax is 0.15 EURO (about 12p in English money or $0.20 in American money). Within a short space of time, shops offered customers a choice between: (1) free paper bags, or (2) heavy-duty reusable bags (usually made of cloth, but sometimes made from thick plastic) for 1 ...


8

I prefer to cheat - I use the disposable bags brought home by my housemates. One way or another our household seems to accumulate enough plastic bags that there's rarely a shortage, and if there is my workmates could easily fill it. So the simple option would be to look for a source of plastic bags that you can re-use. My local supermarket will happily ...


6

Conventional plastics All conventional plastics marked with the 1 to 6 resin identification codes are recyclable. Some types are more easy to recycle than others, for example recycling PVC is more difficult than PET. Also very little polystyrene (PS) is recycled simply because it is not cost-effective to do so. The majority of conventional plastics is ...


5

Reusable bags, mesh bags and a personal shopping cart! One can use the mesh bags for fresh produce and loose items that needs to be scanned and the reusable bags to group the rest. A shopping cart comes handy because it is much easier to roll the reusable bags. It also provides a second option if any of the items don't fit the reusable bags, one can always ...


4

Challenges: Recycling the cartons. Even Milk doesn't do that. "Milk cartons are heavily waxed. This makes them difficult if not impossible to recycle." Correction: Milk cartons are a layer of low density polyethylene on both faces of cardboard. Overcoming the costs of two way transport for the carton containers. Milk is shipped in cartons which in turn ...


4

Firstly the plastic grocery bags that the stores give/sell you are awfully light. I just weighted 4 on my kitchen scale. They average 6 grams each. This means if you buy stuff a pound at a time, it's just over 1% extra. At a kilogram you are down to 0.6% extra. Secondly: the bags are tough enough to get home, and we often reuse them for other things. ...


4

I think you are referring to forgetting to bring the reusable bags when you go shopping. I have the same problem and I think the easiest solution is to always have one or several bags on you. For me this means that my reusable bag always stays in my bag pack, which I take out everyday anyway. Depending on your situation, that might mean to put them into ...


4

Summary: According to this independent study if you look at global warming potential, for a sturdy LDPE bag you need to use it at least 4 times, for an even sturdier non-woven PP bag with inserts it's at least 11 times, and for a cotton bag at least 131 times. These numbers are higher if you reuse your single-use HDPE bags for other purposes In 2006 the ...


3

It doesn't appear that there are any specific studies comparing the environmental impact of dog waste disposed of in biodegradable vs non-biodegradable bags, however there's quite a bit of work that's been done to compare these two types of plastic, considering production, use, and disposal. Bio-based and petrol-based plastic production comparison One of ...


3

I often use a vacuum sealer to seal up food, including meat. I don't know how the freezer shelf life compares to the other answers, but anecdotally I can attest that I've never encountered problems using the stored food several weeks later. I buy vacuum sealed bags that I can reuse (albeit sometimes I have to cut off a small amount of the plastic to open ...


3

I guess the fist thought I had was substituting "sod construction" for earthbag construction. With sod construction the earth is held together by the internal structure of the roots of the sod rather than external forces of bags. It has a long and proven history (the Vikings in Greenland and some other places used it for hundreds of years, with only a few ...


3

According to wikipedia organic materials like jute or hemp are used as alternatives to solid-weave polypropylene in earthbag construction. However, the sustainable idea somehow conflicts with the purpose of earthbags. Polypropylene is chosen for its low cost and its resistance to water damage, rot, and insects. The natural alternatives are in this context ...


1

I would like to suggest you also look into recycling very light, maybe sheer, window curtains as the material for your own homemade bags. Just one from a yard sale could make enough bags to last you for quite a while, and if you do a good job of hemming them and finishing the edges, you could probably machine wash them in a protective mesh bag, as you would ...


1

There are a lot of factors and different ways to view environmental impact and it depends on your priorities. If you prioritize energy used to produce, assuming Nate's citation is correct, the steel is only good when the energy required to produce (mine, refine, smelt, forge, transport, etc.) is less than the energy used to produce an equivalent amount of ...


1

I don’t eat meat but anything I need to freeze, I normally slice it up and keep it in reused glass jars and freeze it . It works perfectly and you end up reusing old glass jars. Although i believe that if you truly worried about sustainability the best think to do is stop contributing to meat and dairy industry .


1

You could either make your own or buy pre-made beeswax cloth. It behaves like plastic wrap and can be washed with cold water and soap. Here is a link on how to make your own.


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