The 7 Types of Plastic You Need to Know

Just because there’s a recycle sign on the bottom of your plastic cup doesn’t mean it’s actually recyclable. Plastic is tricky because the stamp that identifies the type of plastic looks exactly like the chasing arrows recycle sign. This sneaky (ahem, greenwashing) has tricked A LOT of people into thinking that all plastic is recyclable and, well, it’s just not.

When it comes to recycling plastic, you need to pay attention to what’s INSIDE the chasing arrows / recycle sign - the number.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

The number identifies what type of plastic it is (psst. There are seven types of plastic that you need to know and I’ll go over all of them later in this post ) and from there you can figure out if your city or county accepts it.

To make matters even more complicated, recycling rules vary from city to city and county to county.

Just because the last place you lived accepted plastic #3 doesn’t mean that your new place will.

That’s because recycling is a business! It’s so easy to think of recycling as a charity, but it’s not. Recycling depends on the markets and right now, the markets aren’t looking too hot. This is one of the reasons it’s so important to purchase products made with recycled materials, because if you’re not… are even really recycling?

I go over this pretty extensively in my blog post Recycling 101 - 5 Easy Things Everyone Needs to Know.

As of January 2018, China the largest global buyer of recycled paper and plastic placed a ban all imports of that have over a 1% contamination rate. 

To put that into perspective, the most advanced recycling facilities in the US (the ones with the lowest contamination rates) operate around a 4-5%. On the other side, some facilities have a 35% contamination rate which is absolutely mindboggling.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

Contamination happens when either:

A. the wrong thing is put in the recycling bin
B. the right thing is put in, in the wrong way.

The first is an example of wishcycling. Which is when you put something in the bin HOPING that it will be recycled even though it won’t be.

Think Christmas lights, water hoses, dead animals, dirty diapers, bowling balls, shower curtains - yes these are all very common items at the recycling plant. And, no, none of them are recyclable.

When you put something in the recycle bin WISHING for it to be recycled, you do more harm than good.

When incorrect materials arrive this can clog the machines, slow down the workers, stop the machines, and create contaminated bales of recyclables that no one will purchase. I.e. result in all of the correct recyclables being landfilled.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

Yep. A rogue contaminated recyclable can cause an entire BALE to go to the landfill.

The latter is when something is actually recyclable, but it’s not quite right. Paper is recyclable, but shredded paper or coffee cups (which are actually lined with plastic!) aren’t. Cardboard is recyclable, but pizza boxes are not. I could go on and on, but already have a whole series on that called How to Recycle the Right Way!

After reading all that you might be wondering, should I even bother recycling? Yes! You absolutely should, but now more than ever, we need to make sure we’re recycling properly so our materials can actually be turned into new products.

And, of course, I can’t let you get into the meat of this article without first telling you that the most eco-friendly thing you can do is to recycle LESS! Recycling should be a last resort and you can read more about it in this post Why You Should Recycle Less.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

plastic #1:

Plastic #1 is made from polyethylene terephthalate and is commonly known by its street name PET.

This plastic is often clear and most commonly used for beverages like drink cups and soda bottles. ⁠

It is one of the safer plastics except for when it's exposed to heat. Antimony trioxide a flame retardent can easily leach into your beverage. This is why you’ve read numerous articles about not leaving plastic water bottles in the car.

PET is porous so bacteria can accumulate and breed which is why it's not recommended to reuse single-use bottles over an extended period of time. ⁠

The good news about PET is that it's one of the most valuable plastics! It has a really good domestic recycling market meaning if your polyethylene terephthalate is clean and dry it has a really good chance of being recycled. ⁠

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

plastic #2:

Plastic #2 is high-density polyethylene and is commonly seen with the abbreviation HDPE. 

Polyethylene is typically used to make laundry detergent jugs, milk bottles, and toys.

It’s a thermoplastic which is hard and opaque. And, out of all the plastics, if I had to choose, it’s probably my favorite. As far as we know, there are no known health concerns associated with it and it has a pretty robust domestic recycling market.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

plastic #3:

Plastic #3 is polyvinyl chloride and we commonly see this plastic abbreviated with PVC. I’m sure you’ve heard of this one because what probably springs to mind are PVC pipes? At least it does for me.

PVC is used to make a number of household items like shower curtains, vinyl, cling wrap, inflatables like pool toys, flooring, car interiors, and a lot of vegan leathers.

This is a thermoplastic polymer, and a lot of plasticizers and phthalates are added to make it softer and more pliable.

Phthalates are endocrine disruptors that can interfere with our body’s natural communication system. If you’re interested in learning more about the dangers of endocrine disruptors and what all of these synthetic estrogens are doing to our health I can highly recommend the book Estrogeneration How Estrogenics Are Making You Fat, Sick, and Infertile.

It was the first book read in my sustainable living book club, and I would love to invite you to join!

Plastic #3 is not recyclable in most locations.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

plastic #4:

Plastic #4 is Low-density polyethylene is known by its abbreviation LDPE.

LDPE is most commonly used for grocery bags, plastic wrap on items being shipped and is the water-proof inner lining on things like coffee cups and milk cartons. 

It is a thermoplastic made from petroleum, and it can be opaque or translucent. While there aren’t any known health concerns, this plastic is very difficult to recycle.

There currently aren’t many film recycling facilities, and waste management companies do NOT accept films loose in the curbside bin. A few will accept them, but they need to be balled together inside of a larger plastic #4 bag and should be the size of a basketball before being placed in the bin.

If you are looking for a place to recycle #4 films, I know a few grocery stores and target do have film recycling drop points at the front of the store. However, there aren’t many domestic markets so most of these films are so sometimes these are landfilled.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

plastic #5:

Plastic #5 is Polypropylene most commonly seen with the abbreviation PP.

PP is most commonly used for tubs like yogurt, cheese, and butter, lunchboxes, tupperware, and prescription bottles.

It’s a thermoplastic polymer making it tough, strong and is heat resistant so we often see this plastic as microwaveable and dishwasher safe. All this means is that the heat from the microwave and dishwasher won’t warp the shape of the plastic. It doesn’t mean that it’s healthy, and I would personally recommend reheating food on a plate rather than in a plastic container.

If plastic #5 is rigid, some recycling facilities may accept it, but it doesn’t have a very good domestic market so most of the time this material should be landfilled.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

plastic #6:

Plastic #6 is Polystyrene most commonly seen as PS and it’s my least favorite plastic. So, if you’re keeping track. #2 is fav and #6 least fave.

This is a petroleum-based plastic that we most commonly know as Styrofoam, but it’s also used for so many other things like disposable cutlery, coffee cup lids, styrofoam cups and egg cartons, dvd cases, takeout trays, and packing peanuts.

I have a particular beef with styrofoam because it so easily breaks into tiny pieces that pollute our waterways as well as the fact that it contains toxic substances like styrene and benzene which are hazardous to human health as suspected carcinogens and neurotoxins according to the EPA and the International Agency for Research on Cancer (IARC).

Most of these plastics are pretty easy to avoid when it comes to food so be sure to check out my ultimate guide to zero waste swaps from A-Z so you can learn how to easily avoid this plastic!

While there are one or two special programs that accept this material as a general guideline this is not accepted at recycling facilities.

UNADJUSTEDNONRAW_thumb_a6d-min.jpg

plastic #7:

Plastic #7 is a little tricky because it can be a mixture of all sorts of plastics. It’s an “other” but sometimes you’ll see it with the initials like PC which stands for polycarbonate.

But, bioplastics are also a number seven and you might see the initials PLA and some of these can be composted in your backyard others can only be composted in an industrial facility that’s heated up to a certain degree.

But, no matter which letters you see a plastic #7 sign almost always means it’s going to the landfill.

The seven types of plastic that you need to know from www.goingzerowaste.com #plastic #zerowaste #ecofriendly #plasticfree #recycling #recycle #7typesofplastic #upcycle #gogreen

conclusion:

I hope that you’ve found this blog post helpful if you did please share this with your friends and family. Recycling should be a last resort. It’s very important that we first reduce and reuse before we ever get to recycling. So, if you’re looking for more tips on how to reduce the waste that you produce you can get my guide How to Cut Your Waste by 80% with three small changes.

But, if you’re just looking for more recycling tips you should check out my series How To Recycle the Right Way!

Recycling 101 - 5 Easy Things EVERYONE Needs to Know!

I want to demystify recycling once and for all. Recycling rules can get pretty complex when we get down to bottle caps and clamshells because what your recycling program accepts can vary depending on the city, county, and state.

But, there are some overarching themes that most everyone will share when it comes to waste and recycling so all of us can get on the same page and increase our recycling rates as a nation!

Recycling 101 - 5 Easy Things Everyone Needs to Know from www.goingzerowaste.com #zerowaste #recycling #recycle #ecofriendly #sustainable #reducereuserecycle
This post was sponsored by Waste Management! For more information please see my disclosure page.

I had the awesome opportunity to go back to the Waste Management Phoenix Open. I went for the first time last year and it was incredible! It was honestly one of my top highlights of 2019 so I was pretty pumped to be back

This year I attended the event with Shelbi from Shelbizleee and we had a total blast - especially speaking on the dumpster couch.

The 2020 Vision Sustainability Forum was awesome! My personal highlights included John Kerry's keynote and the packaging policy breakout session where we tackled how to move people from indifference to caring about solid waste, recycled materials, increasing recycling rates and so much more.

Another major highlight for me was the behind the scenes tour AKA The MAGIC of keeping a 700,000 person event completely zero waste! My favorite part was doing the waste audit.

We went through a few recycling and compost bags to see if there was any contamination that needed to separated.

Overall, the contamination rates were pretty low. In one large bag, we found on average five pieces of contamination like a few plastic bottles or beverage containers in the compost bin.

Don't worry, every single bag is hand sorted by Waste Management to ensure nothing goes to landfills and that all of the recycling and composting streams are pure!

know what goes in your bin:

Pure recycling and composting streams are SO important. Did I stress that enough… SOOO important!

One of my key takeaways from the Waste Management Phoenix Open was the emphasis on recycling right. The main hashtag for the event was #RecycleRight and trying to educate the public on what actually goes in the recycling bin.

There are a few main reasons people don’t recycle right:

  1. wishcycling

  2. lack of education

  3. laziness

And, I have a way to combat all three!

Up first I want to tackle wishcycling and will get into the other two under the heading ‘talk to your neighbors!’

Wishcycling is when you start wishing and hoping and thinking and praying that what you put in the recycling bin will magically turn into a new product.

I think this belief stems from our perception of recycling.

Many of us think that recycling is charitable. After all, it’s been drilled into our heads from a young age that recycling will SAVE the world!

But, the fact is that recycling is a business. At the end of the day, these recycled products have to be turned back into raw materials for other companies to purchase and use in the creation of new goods.

So, if these streams aren’t clean and pure, there’s no way that’s going to happen.

Make sure that you pay extra close attention to what you put in your recycle bin. These are the most common items accepted in recycling programs across the United States

  1. aluminum cans and tins

  2. rigid plastic #1

  3. rigid plastic #2

  4. paper

  5. cardboard

  6. glass bottles*

*It is becoming more difficult to recycle glass. It’s a very complex issue. Glass breaks which can often contaminate paper streams, endanger workers at the MRF, and it’s just really heavy to transport to glass recycling facilities. Many of the facilities that handle glass aren’t operating anymore and I go over this more in my blog post Which is Better for the Environment Glass or Plastic?

If you are recycling ANYTHING other than those first 5 materials, check with your local waste hauler’s website to make sure that the item you want to recycle is actually accepted in your curbside recycling bin.

Recycling 101 - 5 Easy Things Everyone Needs to Know from www.goingzerowaste.com #zerowaste #recycling #recycle #ecofriendly #sustainable #reducereuserecycle

keep it clean and dry:

So, now that you’re putting the right things in your recycling bin, are you putting them in the right way? Another form of contamination that can happen, especially with single-stream recycling, is when the recyclables are dirty.

Repeat after me, “My recycling should be clean and dry!”

You can’t recycle half-full plastic bottles of water or soda. You also can’t recycle a half-eaten tub of peanut butter.

Your recycling needs to be clean and dry. Now, your recyclables don’t have to be absolutely spotless, but they need to be relatively clean so when all of those products are turned back into raw materials the businesses who buy them will be buying a quality product.

If we want to see more items made from recycled materials, we’ve got to make sure we’re making that an easy choice.

Recycling 101 - 5 Easy Things Everyone Needs to Know from www.goingzerowaste.com #zerowaste #recycling #recycle #ecofriendly #sustainable #reducereuserecycle

Paper is one of the most fragile items in your recycling bin. It can’t be wet or soiled with food waste. So, if you’re about to toss a yogurt container or soda can in your curbside bin, you should ask yourself, “Will this get on any paper?”

If you have a tub of peanut butter, carton of oat milk, plastic bottle, tin of beans, or can of soda, you name it the process is the same.

Once you’re finished with it, add a little bit of water, put the lid on, and give it a good shake to loosen up any remaining food particles. Rinse it out, tap out any excess water and then you’re good to put it in your recycling bin.

And, make sure that you’re putting your recyclables lose into your recycling bin. Do not put your recyclables in a plastic bag!

Recycling 101 - 5 Easy Things Everyone Needs to Know from www.goingzerowaste.com #zerowaste #recycling #recycle #ecofriendly #sustainable #reducereuserecycle

talk to your neighbors!

A lot of people don’t know what’s recyclable, they just guess. So, this is the important part where you come in! Most neighborhoods have meetings to go over things.

See if you can talk about recycling at the next one. I’ve created a few print outs to help people visually digest this information much quicker. One in black and white and one in color so you can encourage everyone to put these on their fridge or next to their recycling bin.

And, if you’re out taking your trash out, strike up a conversation with your neighbor. Most people want to recycle properly they just aren’t very educated.

Make every day earth day (1).jpg

Ask them about recycling. I find the best way to lead into this conversation is with a fun fact or a news story like, “Did you hear that China is no longer accepting most of our plastic? Yeah, now only plastic #1 and #2 is recycled! Crazy right?” or “Did you know that not all plastic is recyclable!? Look, here’s a plastic #5 item and it looks like it’s recyclable because of the chasing arrows, but it’s not.”

You should both get to chatting about recycling and hopefully, the result is a cleaner recycling stream.

Now, if your neighbor is just lazy and doesn’t care, that’s a different thing altogether. One of the best ways to activate people who don’t care is to gamify the system.

⁠We're already seeing the beginning of gamification like when drivers get scored on their driving (many electric and hybrid vehicles do this) people start driving better and more consciously. ⁠

Make every day earth day.jpg

When people get electric and water bills showing how they're doing in comparison to their neighbors they save more electricity and water whether they're interested in saving resources or not simply because they want to WIN the game. ⁠

Waste Management is using these principles to gamify waste. If you're not doing a very good job of recycling, they'll place a frowny face tag :( on your bin with instructions on how to recycle right. ⁠And, at the Waste Management Phoenix Open, they had an amazing installation with a basketball game.

Recycling 101 - 5 Easy Things EVERYONE Needs to Know!

There were two hoops one for compost and one for recycling, and each basketball had an item on it like an aluminum can or an apple core so even if you made your basket if the wrong material like an apple core went in the recycling bin you lost points.

Subtle games like these are a way of increasing overall consciousness whether you truly care about the planet or not. I’m very excited to see how gamification can be harnessed in the future because I’m convinced it is one of the best tools we have.

support recycling systems:

When we look at the recycling slogan or hierarchy of waste we have reduce-reuse-recycle. Many of us skip reduce and reuse altogether and jump straight to recycling which is another blog post in and of itself, but I digress.

We also only focus on one aspect of recycling…. the part where we put the items in our curbside bin.

How many of you actively look and buy products made from recycled content?

This was another key point driven home at the Sustainability Forum this year. Companies are just not buying raw recycled materials at the pace they should be buying them.

Recycling 101 - 5 Easy Things Everyone Needs to Know from www.goingzerowaste.com #zerowaste #recycling #recycle #ecofriendly #sustainable #reducereuserecycle

As consumers, we need to not only buy products made from recycled content we also need to voice our opinions. Wouldn’t it be great if there were a law dictating that all products should be made of at least 30% recycled content?

How do you think that would change the face of recycling and move us closer to our goal of a zero-waste world?

The second part of recycling is making sure that we’re supporting these materials all the way through their lifecycles so we can move to a circular economy and write waste out of existence.

I love the example below where wine glasses from the previous Phoenix Open have been turned into drinking glasses!

Recycling 101 - 5 Easy Things Everyone Needs to Know from www.goingzerowaste.com #zerowaste #recycling #recycle #ecofriendly #sustainable #reducereuserecycle

tl;dr / cheat sheet:

WHAT GOES IN YOUR RECYCLING BIN

  1. aluminum cans

  2. rigid plastic #1

  3. rigid plastic #2

  4. paper

  5. cardboard

  6. glass bottles*

*For glass and anything else not on that list make sure to check with your local waste management facility. But, if you’re only putting those 5-6 items in the bin, you’re doing a great job.

Other Notes:

  • Recyclables should be clean. Give them a quick rinse before placing in the bin

  • Recyclables should be dry. Make sure to tap out any excess liquid

  • Recyclables should be loose in the bin. Do NOT put them in plastic bags!

I would like to thank Waste Management for sponsoring this post and inviting me for the second year to the Waste Management Phoenix Open! I had an absolute blast and learned so much from the Sustainability Forum.

Which is Better For The Environment? Glass or Plastic?

When you look up zero waste, you’re bound to notice tons and tons of pictures of glass jars everywhere. From the trash jar to the jars lining our pantries, glass is pretty popular in the zero waste community.

But what’s our obsession with glass? Is it really so much better for the environment than plastic? 

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

Plastic tends to get a really bad rep from environmentalists – that's got a lot to do with the fact only 9 percent of it is recycled. That said, there’s so much more to think about in terms of what goes into manufacturing and recycling both glass and plastic, not to mention its afterlife. 

Which is truly the eco-friendliest choice when you get down to it, glass or plastic? Well, perhaps the answer isn’t as clear cut as you may think.

glass:

Let's start by analyzing every zero waster’s beloved material: Glass.

First, it’s important to note that glass is endlessly recyclable, back to its original use. It never loses its quality and purity, no matter how many times it’s recycled…. but is it actually being recycled?

problems with glass:

First up, making new glass requires sand. While we have tons of sand on beaches, deserts and under the ocean, we’re using it faster than the planet can replenish it. 

We use sand more than we use oil, and only a specific kind of sand can be used to get the job done (no, desert sand can’t be used). Mostly, sand is harvested from riverbeds and seabeds.

Taking sand out of the natural environment also disrupts the ecosystem, considering microorganisms live on it which feed the base of the food chain. 

Removing sand from the seabed leaves shore communities open to flooding and erosion. Since we need sand to create new glass, you can see where this would be an issue.

Another problem with glass? Glass is heavier than plastic, and breaks much easier during transit. This means it produces more emissions in transportation than plastic, and costs more to transport.

Yet another thing to consider is most glass isn’t actually recycled. In fact, only 33 percent of waste glass is recycled in America. When you consider 10 million metric tons of glass is disposed of every year in America, that’s not a very high recycling rate. 

There are many reasons glass recycling is so low: Glass put into the recycling bin is used as a cheap landfill cover to keep costs low; Consumers participating in “wish-cycling” where they toss non-recyclables into the recycling bin and contaminate the entire bin; Colored glass can only be recycled and melted down with like-colors; Windows and Pyrex bakeware are not recyclable because of the way it’s manufactured to withstand high temperatures.  

Last but not least, glass takes one million years to decompose in the environment, perhaps even more in a landfill. 

In total, that’s about four major problems with glass that impact the environment. Now, let’s analyze the lifecycle of glass bit closer.

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

raw materials: 

Glass is made from all-natural resources, such as sand, soda ash, limestone and recycled glass. However, it is important to note that we’re running out of the sand that’s used to make glass in the first place. Worldwide, we go through 50 billion tons of sand every year. That is twice the amount produced by every river in the world.

Once these raw materials are harvested, they’re transported to a batch house where they are inspected and then sent to the furnace for melting where they’re heated to 2600 to 2800 degrees Fahrenheit. Afterwards, they go through a conditioning, forming and finishing process before becoming the final product.

Once the final product is created, it’s transported so it can be washed and sterilized, then transported again to stores for sale or use. Once it comes to its end of life, it’s (hopefully) collected and recycled. Unfortunately, each year only one-third of the roughly 10 million metric tons of glass that Americans throw away is recycled. The rest goes to a landfill.

When glass is collected and recycled, it has to begin this process of being transported, going through batch preparation, and everything else that follows again.

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

emissions + energy:

As you can imagine, this entire process to make glass, especially using virgin materials, takes up a lot of time, energy and resources. Also, the amount of transporting the glass has to go through adds up too, creating more emissions in the long run.

A lot of the furnaces used to create glass also run on fossil fuels, thus creating a lot of pollution.

The total fossil fuel energy consumed to make glass in North America, primary energy demand (PED), averaged to 16.6 megajoule (MJ) per 1 kilogram (kg) of container glass produced. The global warming potential (GWP), aka climate change, averaged to 1.25 MJ per 1 kg of container glass produced. These numbers encompass every stage of the packaging life cycle for glass.

If you’re wondering, a megajoule (MJ) is a unit of energy equivalent to one million joules. A property’s gas usage is measured in megajoules and is recorded using a gas meter.

To put the carbon footprint measurements I gave into perspective a little better, 1 liter of gasoline is equal to 34.8 megajoules, High Heating Value (HHV). In other words, it takes less than a liter of gasoline to make 1 kg of glass. 

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

recycling rates:

However, if a glass manufacturing facility used 50 percent recycled content to make new glass, then there would be a 10 percent decrease in GWP.

In other words, the 50 percent recycle rate would remove 2.2 million metric tons of CO2 from the environment. That’s the equivalent of removing CO2 emissions of nearly 400,000 cars every year.

However, this would only happen assuming at least 50 percent of glass was recycled properly and used to make new glass. Currently, only 40 percent of glass thrown into single-stream recycling collections actually gets recycled. 

While glass is completely recyclable, unfortunately there are certain facilities that choose to crush the glass and use it as a landfill cover instead. This is cheaper than actually recycling the glass, or finding another cover material for landfills. 

Cover material for landfills are a mix of organic, inorganic and inert components (such as glass). Landfill covers are used to control the offensive smells landfills give off, deter pests, prevent waste fires, discourage scavenging, and limit rainwater runoff. 

Unfortunately, using glass to cover landfills doesn’t help the environment or reduce emissions because it’s essentially downcycling glass and preventing it from being reused.

Make sure you look into your local recycling laws before you recycle glass, just to double check it’ll actually be recycled. Glass recycling is a closed-loop system, so it doesn’t create any additional waste or by-products.

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

end of life:

You’re probably better off holding onto glass and repurposing it before you toss it into the recycling bin.

Glass takes a very, very long time to break down. In fact, it can take a glass bottle one million years to decompose in the environment, possibly even more if it’s in a landfill. 

Because its life cycle is so long, and because glass doesn’t leach any chemicals, it’s better to repurpose and reuse it over and over again before recycling it.

Because glass is nonporous and impermeable, there are no interactions between glass packaging and the products inside, resulting in no nasty after taste – ever. Plus, glass has an almost zero rate of chemical interactions, which ensures that the products inside a glass bottle keep their flavor, strength and aroma.

I guess that’s why lots of zero wasters encourage people to save all their empty jars for reuse. It’s great for storing food you get from the bulk food store, leftovers, and homemade cleaning products!

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

plastic:

The zero waste community has a habit of criminalizing plastic. But is it really as bad as they say? 

Let’s take a look, shall we?

problems with plastic:

First, most plastic (not counting the bio-plastics) are petroleum-based, thus making the materials non-renewable and unsustainable to harvest. Drilling for oil has caused many problems, including disturbing land and marine ecosystems.

Also, dealing with oil tends to result in oil spills, which contaminate soil and water and may cause horrendous fires and explosions. 

Secondly, the carbon footprint of plastic is pretty hard to ignore. From the moment raw materials are made into plastic to their disposal, plastic emits carbon dioxide. In fact, the emissions from plastic in 2015 were equivalent to nearly 1.8 billion metric tons of CO2. 

It doesn’t help the factories used to create plastic also run on fossil fuels and produce emissions as well. To be fair though, factories that produce glass also create emissions and run on fossil fuels for the most part.

Another problem? Only 9 percent of plastic is actually recycled. Considering we’ve made 8.5 billion metric tons of it since large scale production began, that’s a very small recycle rate. 

The glass recycling rate is 33 percent, which isn’t fantastic compared to other countries (there’s a 90 percent glass recycling rate in Switzerland, Germany and other European countries), but still higher than plastic.

When it is recycled, plastic can only be downcycled, meaning it becomes an item of lesser quality. It will never be the same item again. 

Eventually, this leads it to become a waste item that is no longer recyclable and destined to end up in a landfill, or the environment.

Not to mention, plastic takes 450+ years to decompose in the environment, 1000 years in a landfill.  Compared to glass, which takes 1 million years to break down, these numbers may seem kind of low. 

However, it’s important to remember unlike glass, plastic leech toxic chemicals into the environment as time passes. Plastic doesn’t truly break down either, but instead becomes microplastics which pollute our waterways and even contaminate our very soil and the air we breathe.

Altogether, that’s about six major problems with plastic that impact the environment. Lets look at plastic’s life cycle a little bit closer.

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

raw materials:

First, oil and natural gas are the major raw materials used to manufacture plastics. 

Plastic production often begins by treating components of crude oil or natural gas in a “cracking process” where these components are converted into hydrocarbon monomers, such as ethylene and propylene. 

Even more processing leads to various other monomers, such as styrene, ethylene glycol, terephthalic acid, vinyl chloride and several others. These monomers are then chemically bonded into chains called polymers. 

The different combinations of monomers yield various different kinds of plastics, all with a wide range of characteristics and properties. There are seven major plastics that are used widely such as Polyethylene Terephthalate (PETE), High Density Polyethylene (HDPE), Polyvinyl Chloride (PVC), Low Density Polyethylene (LDPE), Polypropylene (PP), Polystyrene (PS) and other plastics (ex: nylon).

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

emissions + energy:

All these different plastics serve different functions, though some are easier to recycle than others. As you can imagine, creating all those plastics takes a lot of energy and resources.

In fact, in 2007, researchers Peter Gleick and Heather Cooley estimated that satisfying the existing bottle water demand alone required the energy equivalent of between 32 and 54 million barrels of oil. And that’s just bottled water! This means producing plastic bottles each year releases more greenhouse gas emissions than over a million cars on the road.

From production to end of life, plastics have a surprisingly carbon-intense life cycle. When they’re transformed into products and transported to market, they emit greenhouse gases either directly or via the energy required to accomplish them. 

Even after you dispose of plastic, be it through dumping, incinerating, recycling and composting (for certain bio-plastics), all release carbon dioxide. The emissions from plastics in 2015 were equivalent to nearly 1.8 billion metric tons of CO2

Researchers only expect this number to grow. They project the global demand for plastics will increase by some 22 percent over the next five years. Just to break even, we’ll have to reduce emissions by 18 percent. 

However, on the current course, emissions from plastics will reach 17 percent of the global carbon budget by 2050. This budget basically estimates the max amount of greenhouse gasses we can “safely” emit without making global temperatures rise more than 1.5 degrees Celsius. 

In other words, there’s really no room for increasing greenhouse gas emissions.

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

recycling rates:

It doesn’t help that only 9 percent of plastic is actually recycled, either. Humans have created 8.5 billion metric tons of plastics since large-scale production began in the 1950s, and most of it is in a landfill or our environment.

You can imagine how this impacts carbon emissions. While it certainly would be better to have a higher recycling rate for plastic, it’s definitely not the end all solution.

After all, plastic can only be recycled so many times. In fact, it’s technically downcycled into a lesser quality item, meaning it can never be the same thing more than once. Eventually, it becomes unrecyclable altogether and ends up as a waste product.

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

end of life:

It should also be noted that plastic takes a very long time to disintegrate and break down. A plastic bottle for example, takes 450+ years to disintegrate, and a thousand years if they’re in a landfill. 

If you compare that to how long glass takes to disintegrate, you might think it’s a better outcome. However, it’s important to note plastic releases toxic chemicals into their surrounding environment as they break down, unlike glass.

We have plenty of room to improve on our recycling game, but recycling plastic certainly isn’t the end-all-answer to our plastic problem. 

Ultimately, replacing fossil-based energy with renewable sources would have the greatest impact on plastic’s greenhouse gas emissions overall. While it’s a bit idealistic, transitioning to 100 percent renewable energy would reduce emissions from plastic by a whopping 51 percent.

Which is better for the environment? Glass or Plastic? from www.goingzerowaste.com #ecofriendly #sustainable #glass #plastic #recycle #zerowaste

tl;dr:

Glass and plastic both have their pros and cons.

The best thing we can do is reduce our reliance on anything single-use! If you use it once and then place it in the recycling bin, try to find another solution.

Of course there are exceptions, and there’s no way we’re going to completely eradicate single-use, but we can definitely make a HUGE dent in it by being a little more conscious with our purchases.

Generally speaking try to avoid buying new plastic and still prefer to buy glass. I try to opt for packaging that contains mostly recycled content, because are we really recycling if we don’t buy products made from recycled content?

And, you should definitely reuse your glass bottles and jars!

sources and further reading:

http://www.gpi.org/sites/default/files/N-American_Glass_Container_LCA.pdf

https://www.businessinsider.com/world-running-out-sand-resources-concrete-2018-6

https://livegreen.recyclebank.com/column/because-you-asked/what-kinds-of-glass-can-i-recycle

https://www.wm.com/thinkgreen/what-can-i-recycle.jsp

https://cen.acs.org/materials/inorganic-chemistry/glass-recycling-US-broken/97/i6

https://trashcansunlimited.com/blog/understanding-landfill-cover-materials/

https://www.ecori.org/composting/2010/2/1/broken-glass-provides-cheap-cover-at-state-landfill.html

https://education.seattlepi.com/long-glass-bottle-degrade-landfill-5235.html

https://livegreen.recyclebank.com/column/the-list/7-truths-about-glass-recycling

https://plastics.americanchemistry.com/Lifecycle-of-a-Plastic-Product/

https://www.sciencedaily.com/releases/2017/07/170719140939.htm

https://iopscience.iop.org/article/10.1088/1748-9326/4/1/014009/fulltext/

https://www.sciencedaily.com/releases/2019/04/190415144004.htm

https://www.eia.gov/energyexplained/index.php?page=oil_environment

http://www.getwaste.info/garbage-decomposition-time/

me2.jpg

Guest Post: Ariana Palmieri is the founder of Greenify-Me.com, a blog dedicated to zero waste living and sustainability. Her work has been featured on MindBodyGreen, Green Matters, The Penny Hoarder and several other publications. Get her free e-book "10 Ways to Reduce Trash" by signing up to her newsletter and learn how to reduce your waste today.