Earlier today, when I went for my morning swim in the lake, I suddenly found myself caught up in a large semi-submerged plastic bag. My guess is that it had once packaged a large-screen TV, possibly recently purchased for the World Cup. As to what it was doing in the lake, someone may have brought it down to one of the lakeside beaches to sit on during an evening barbecue. They had inadvertently, probably after a few too many beers, left it there to wash out into the waves..
One moment I was swimming peacefully in crystal clear water; the next I was confused and panicked as I struggled to free myself from the plastic. At one stage my hands and arms were inside it and I had trouble staying afloat. My panic only lasted a few seconds, but as I brought the plastic bag back to the shore to dispose of in one of the rubbish bins on the beach, I thought of all the turtles and other marine life that get caught and perish in the plastic debris floating in our oceans. They too must suffer the same sense of panic and confusion that I had felt earlier today. One moment they are free; the next they are trapped in a thing of which they have no comprehension.
I had already been thinking about plastic last Saturday evening when my wife and I went out to dinner and we were served our cocktails with unnecessarily large—and unnecessarily plastic—straws. I thought about complaining to the waiter about them, but my habitual British fear of embarrassment stopped me. I didn’t want to spoil what was a lovely evening.
Starbucks announced this week that they would be completely eliminating plastic straws from their 28,000 stores around the world by 2020. And that is no small thing: the company currently uses more than one billion plastic straws per year.
McDonald’s also recently announced it will ban plastic straws at its U.K. and Ireland restaurants; other food outlets and airlines are following the trend. Cities are also joining in, with Seattle becoming the latest city in the US to do so. The UK environment minister has gone on record as saying he would like to ban plastic straws completely in the UK, while the EU has also proposed a ban on plastic straws and single use cutlery.
This week National Geographic published an excellent article on the history of plastic straws and how they took over the world. They write that in just the U.S. alone, one estimate suggests 500 million straws are used every single day. One study published earlier this year estimated as many as 8.3 billion plastic straws pollute the world’s beaches.
However, eight million tons of plastic flow into the ocean every year, and straws comprise just 0.025 percent of that.
Bloomberg argues that giving up plastic straws may make you feel better about yourself, but will have little effect on ocean plastic. The news agency cites a recent survey that found that at least 46 percent of the plastic in the oceans by weight comes from a single product: fishing nets. Other fishing gear makes up a good chunk of the rest. (Bloomberg suggests that all fishing gear should be marked with the name of the ship that uses it: a complicated and difficult solution that will take time to implement.)
Banning plastic straws, like taxing calorific soft drinks, is a simple response to a complex problem. Doing so enables politicians to say that they are doing something to solve a problem, whether it is plastic waste or obesity, but in reality they must know that their actions will have little impact.
So what is the solution to plastic waste—and what can the food and agriculture industry do to help? The answer is, as usual, complicated.
The BBC published this week an excellent analysis of the issues involved with plastic packaging in the food industry. They argue that although plastic is viewed as bad, “the shrink wrap used on cucumbers for instance, can more than double the length of time the vegetable can last, allowing it to be kept for up to 15 days in the fridge and cutting food waste in half.
The BBC adds,
“Much of the food we now buy in supermarkets comes tightly wrapped in sealed plastic films and protective trays. This keeps fresh meat in an oxygen-free atmosphere, helping to prevent it from spoiling. Delicate fruit and vegetables are also kept safe from bumps that can degrade them, meaning they’re more likely to be sold. Putting grapes in their own individual plastic boxes has been found to cut food waste by 75%.”
The BBC also looks at the environmental cost of replacing plastic drink bottles with glass ones. They write that “it is generally not that much more expensive to produce a glass bottle versus one made from PET – about $0.01 more, according to some analysis.
“However, when manufacturers start transporting produce in glass bottles, costs start to rise. A 330ml plastic soft drink bottle contains around 18 grams of material while a glass bottle can weigh between 190g and 250g. Transporting drinks in the heavier containers requires 40% more energy, producing more polluting carbon dioxide as they do and increasing transport costs by up to five times per bottle.
As a result, some, including those the packaging industry, argue that in many cases plastics are actually better for the environment than the alternatives.
But what about plastic made from renewable sources? There again the answer is not a simple one.
Coca-Cola became a leader in bioplastics when two years ago they launched the PlantBottle, partially made with Brazilian sugarcane. However just because they are made from renewable green sugarcane doesn’t mean the bottles are biodegradable or compostable. They have to be recycled, but they also have to be separated from PET in the recycling process, driving up the costs.
France is a leader in the use of biodegradable and home-compostable plastic bags in supermarkets, and in 2017 took partial steps to ban single-use plastic bags. France’s Environment Ministry estimates that before the ban 17 billion plastic bags were used in France each year. Of those, some five billion were handed out at check-outs and 12 billion were for fruit and veg. An average plastic bag takes one second to make, is used for roughly 20 minutes and takes up to 400 years to degrade naturally.
The example of France shows that real progress can be made if the political will is there, even if only by one small step at a time. Further comfort can be taken from the fact that with petrol prices rising, recycled plastic is actually cheaper than fresh, virgin plastic made from oil. A tonne of virgin PET costs around £1,000 while clear recycled PET costs just £158 per tonne.
We can all be part of the solution by drinking from a reusable bottle whenever we can, and by conscientiously recycling the PET bottles whenever we can’t. As for plastic straws, they have become a totem for the anti-plastic movement; they help to focus our attention on the issue. So don’t wimp out like I did last Saturday evening: refuse a plastic straw whenever it is offered to you.
And one last thing: please don’t take any plastic with you when you go to the beach this summer. I had enough of a panic attack already!
All images from pixabay under Creative Commons