https://www.theglobeandmail.com/opinion/article-sorry-banning-plastic-bags-wont-save-our-planet/
Bjorn Lomborg is president of the Copenhagen Consensus Center.
Last week, Prime Minister Justin Trudeau announced a plan to reduce plastic pollution, which will include a ban on single-use plastics as early as 2021. This is laudable: plastics clog drains and cause floods, litter nature and kill animals and birds.
Of course, plastic also makes our lives better in a myriad of ways. In just four decades, plastic packaging has become ubiquitous because it keeps everything from cereals to juice fresher and reduces transportation losses, while one-use plastics in the medical sector have made syringes, pill bottles and diagnostic equipment more safe.
Going without disposable plastic entirely would leave us worse off, so we need to tackle the problems without losing all of the benefits.
The simplest action for consumers is to ensure that plastic is collected and used, so a grocery bag, for example, has a second life as a trash bag, and is then used for energy.
Explainer: Canada’s single-use plastics ban: What we know so far and what you can do to recycle better
But we need to be honest about how much consumers can achieve. As with other environmental issues, instead of tackling the big-picture problems to actually reduce the plastic load going into oceans, we focus on relatively minor changes involving consumers, meaning we only ever tinker at the margins.
More than 20 countries have taken the showy action of banning plastic bags, including even an al-Qaeda-backed terrorist group which said plastic bags pose “a serious threat to the well-being of humans and animals alike.”
But even if every country banned plastic bags it would not make much of a difference, since plastic bags make up less than 0.8 per cent of the mass of plastic currently afloat on the world’s oceans.