Thank you.
I want to start by commending the standing committee on the motion you passed in December to study plastics where you emphasized the mitigation of plastics as opposed to just dealing with plastics as they already exist.
As you probably know, plastics can be considered a stock and flow problem, where the flow of plastics into a stock makes a standing stock that exists sort of forever in geological time. It's like an overflowing bathtub. You want to turn off the tap before you start mopping up. I want to commend the committee on already recognizing that problem, which is not always recognized. Thank you.
I'm going to structure my comments in terms of greatest impact and effect from a scientific perspective. That doesn't mean it's always going to align with low-hanging fruit, but this is the scientific perspective, the research perspective.
I think it's crucial to do actions that will make an empirically noticeable difference. For example, if Canada bans straws, I wouldn't notice it in my daily activities, which is taking plastics out of the guts of animals, because I've never met a straw in the gut of an animal. We want to make sure that the scale of intervention and the scale of the problem are commensurate, that they match up. I think that's an ongoing challenge for most plastic pollution solutions.
In the spirit of that, I brought a graph with me which shows the exponential increase in the production of plastics. The red part is the worldwide production of plastics and the blue part is in Europe. These numbers are out of Europe. What it shows is that since the history of the mass production of plastics, since World War II, there have only been two moments where the increasing production of plastics decreased. The first was during the energy crisis of the 1970s and the second was in our most recent economic recession. These are the scales of impacts that matter to the mitigation of plastics as a flow problem. That's the sense of scale that we're thinking of.
What you don't see on those graphs are things like the rise of recycling and the near ubiquity of curbside recycling programs. What you don't see are bag bans reflected in that. That doesn't mean they don't make a difference. What it means is that they don't scale to the production problem, which is the plastic problem.
The other thing about thinking upstream is that the total upstream of plastics doesn't end with the production of plastics. The total upstream of plastics is oil and gas, the production of raw feedstocks. We're facing a problem where in the U.S. there's been a very recent $65-billion investment to dramatically increase oil production. Then globally we have something like an increase by a third in the next six years. Those aren't Canadian numbers but Canada will be impacted by those because plastic production means plastic flow into the ocean. Jurisdictionally, what Canada can do is not double down on oil like the other places, because an investment in oil does result in plastics. Basically a plastic plan that doesn't address oil and natural gas, the feedstocks of plastics, does not fully address plastics. That's something to keep in mind.
When we're thinking about plastics after they already exist and after they've already entered the environment, what's important to keep thinking about in the sort of scale and jurisdictional context of Canada is that there is no single Canadian plastic profile. Different regional locations have different plastic problems. In Newfoundland and Labrador, where I do most of my research, the problem is fishing gear. In Newfoundland I do not open up a species' guts without finding fishing gear. In urban areas it's cigarette butts and food packaging, including urban areas in Newfoundland and Labrador.
In the Great Lakes it's nurdles. Nurdles is their nickname, pre-production pellets and microbeads from sewage as well as microfibres. On our east coast it's a lot of come-from-away plastics that do not originate in Canada by and large, while on the west coast most of our plastics flow out to Greenland, Iceland and Europe. I'm doing research on that now.
Any sort of intervention that is Canada-wide will either impact regions differentially or we look at what plastics matter in different regions and impact those differentially. But there is no Canada-wide issue. That's not how they.... It's a place-based problem.
Another way to think about what matters in plastics is the type of harms that happen. I don't think it's a coincidence that the major leading scientific researchers in Canada on plastics, so me, Chelsea Rochman, Peter Ross, who I think you've spoken to, Alex Bond, Jennifer Provencher, all of us in whole or in part look at ingestion studies, animals when they eat plastics. The problem when an animal eats plastic is not that it's eaten plastic and then it dies. You know this because you've met dogs, I assume. My dogs eat plastics every day and twice on Sundays. There's been no crisis of the dog species. Sometimes, yes, you need to take a dog to the vet to get the sock out, but there's no species level problem with plastics in dogs that readily ingest plastics. The exception to that might be turtles. Turtles do get harmed by eating large plastics.
The problem with plastics from an ecological and human health point of view is that they absorb oily chemicals. If you've ever put curry or spaghetti in Tupperware, you can't get the orange colour out of the Tupperware. That's because plastics absorb those chemicals. They're hydrophobic or oily chemicals.
In the environment, there's less tomato sauce, usually, and more things like PCBs, which are flame-retardants, DDT, pesticides, and heavy metals, like methylmercury. Some of those chemicals start in plastics, but most, from a concentration perspective, glom onto the plastics after they circulate in the environment.
This is what we're concerned about. When an animal ingests these plastics, there is basically a vector, or a little vessel, for these other chemicals to circulate into the animal and into the food web, including human food webs.
I think that matters more in Canada than in some other nations. Where I live in Newfoundland and Labrador, 80% of the population eats wild food. The further north you go, the higher that number gets. Also, a lot of exports and livelihoods depend on fishing and hunting—the production of animals for food. This is a primary concern for scientists. Basically, any intervention that doesn't impact this problem—and that I don't notice when I'm opening up the guts of an animal—has not affected one of the primary concerns of plastic pollution in Canada.
On that note, in thinking about effectiveness and how effects are happening, I have a student named Lucas Harris who is looking at evaluating plastic pollution mitigation measures. He's looking specifically at extended producer responsibility in British Columbia, which, since 2014, is the only province that has a province-wide policy on EPR.
The problem is that there's no EPR-specific data on plastics. The idea with extended producer responsibility is that if producers are responsible for their waste, then they produce less waste, so they are responsible for less, both feasibly and economically in other sorts of ways.
To test that, to see if this also reduces the leakage of plastics into the environment, my student is trying to find data from before and after 2014 in British Columbia. Since the data scheme didn't go along with the EPR policy, the only data that exists to evaluate it by is citizen science data from cleanups.
His final research will be done in August, but we have preliminary results that we're very confident in. They show that if you have data that isn't designed for a task, it's not very good data.
Basically, the only data that exists is the citizen science data. It does track packaging, but it doesn't track it in a way that allows you to actually evaluate EPR. Therefore, any intervention by the federal government needs to include data that tells us if it's actually worked or not, because it's very hard to tell.
There are very few solutions out there that actually have benchmarks, or baseline data, to use the scientific term, that can prove whether an intervention works or not. Currently, it's mostly ideas of whether they work or not; we don't have evidence as to whether they work or not.
Any really robust intervention needs evidence and data collection, before and after, targeted to the intervention. Otherwise, it's just a good idea, which is insufficient for sustainability.
Thank you for your time.