Take a look around your home and you’ll likely find plenty of goods that traveled by cargo ship to your doorstep. Tracing the Walmart impact on the environment from shipping any of these goods is incredibly tricky to do. The data — if you can find it — involves many companies, countries, and cargo carriers.
Such obscurity makes it hard to count the full cost of our consumption. But a recent report helps unravel some of the mystery, says an article published on grist website.
Dirty ocean shipping is fueling the climate crisis
Two environmental groups, Pacific Environment and Stand.earth, worked with prominent maritime researchers to track goods imported by the 15 largest retail giants in the United States. They then quantified the greenhouse gas emissions and air pollutants associated with those imports, usually ferried across the oceans on cargo ships running on dirty bunker fuel.
In 2019, importing some 3.8 million shipping containers’ worth of cargo generated as much carbon dioxide emissions as three coal-fired power plants. These shipments also produced as much smog-forming nitrous oxide as 27.4 million cars and trucks do in a year, according to the report.
“Our report affirms that these retail giants’ dirty ocean shipping is fueling the climate crisis,” said Madeline Rose, climate campaign director for Pacific Environment and the study’s lead author.
Emissions by retailers
The study is the first to trace retailers’ shipping-related emissions, and it used data from a separate, larger project to track the industry’s emissions that’s set to launch in October. The findings are likely just a snapshot of the true environmental toll: Researchers said they could only verify emissions for one-fifth of shipments by the 15 retailers, owing to a lack of data and the companies’ use of shell companies and franchises.
The largest retail company in the United States, Walmart, was also the biggest polluter of the bunch. In 2019, Walmart imported enough goods to equal 893,000 shipping containers, resulting in some 3.7 million metric tons of carbon dioxide emissions.
Measures to curb cargo ship emissions
The International Maritime Organization, which regulates the industry, has recently adopted measures to curb cargo ship emissions and reduce fuel consumption. But experts say stronger regulations and bigger investments are needed to steer the industry away from fossil fuels and toward cleaner technologies, such as hydrogen fuel cells, batteries, and wind-harnessing devices.
Another way to spur companies to action is through accounting — figuring out how many emissions are produced by which activity, from which company, at which location. In the world of ocean freight, a shipment of cargo can pass through many hands and even owners between the time it leaves a factory and reaches a warehouse on the other side of the planet. The goal of the new research, Rose said, is “to bring baseline environmental and public health accounting oversight to this incredibly murky issue.”
Walmart, the next top polluter
After Walmart, the next top polluter in the report was Ashley Furniture, which imported 270,000 containers and generated over 2.2 million metric tons of CO2. Next up was Target, with some 600,000 containers and over 2 million metric tons of CO2.
Researchers could only track some 123,000 container imports for Amazon, a company whose 2019 revenues topped $280 billion. Those imports were responsible for more than 390,000 metric tons of emissions.
Representatives from Walmart and Amazon didn’t comment directly on the study but provided information on their companies’ efforts to curb emissions from their supply chains. In response to a request for comment, a Target spokesperson said the company is committed to “reducing our shipping carbon footprint,” as it works toward becoming a “net zero enterprise” in its operations and supply chain by 2040.
Emissions by IKEA
A spokesperson from IKEA, which came in seventh place for CO2 output, said addressing emissions from cargo ships is “a significant topic” for the Swedish furniture giant. Ocean shipping accounts for about 40 percent of IKEA’s total carbon emissions from transportation.
The spokesperson said the company is working to reduce its carbon footprint from every shipment by 70 percent on average by 2030. To that end, IKEA participated in a 2019 pilot project to test biofuels in an ocean-going container ship.
Efforts to cut carbon emissions
Godar said his ship tracking efforts began in 2014 with the launch of Trase, an online database that follows the flow of agricultural commodities that are driving deforestation in tropical countries. With Trase, however, the idea is to discern whether that soy came from, say, illegal logging in the Amazon rainforest or a legal farm elsewhere, and then follow that to the final customer.
Researchers are increasingly able to access such valuable information as more companies keep records in digital form, Godar said, and as the ability to “scrape” data from the internet improves. Still, there are limits. Most data isn’t publicly available, and it’s expensive for researchers to buy. Godar hasn’t been able to get a hold of shipping-related data from the European Union and other countries, which leaves an informational black hole.
A beta version of the SEA-CASE platform will launch this fall and be free for anyone to access. A preview over Zoom showed a flurry of yellow lines connecting continents, each one revealing a detailed breakdown of a particular voyage in 2019. A casual user could, for example, trace coffee imports by Starbucks into the United States, then see the carbon emissions associated with the shipments.
Ultimately, this kind of information could help consumers push retailers to cut carbon emissions from their suppliers, said Gary Cook, the global climate campaigns director for Stand.earth.
Summary
- Two environmental groups, Pacific Environment and Stand.earth, worked with prominent maritime researchers to track goods imported by the 15 largest retail giants in the United States.
- In 2019, importing some 3.8 million shipping containers’ worth of cargo generated as much carbon dioxide emissions as three coal-fired power plants.
- IMO, which regulates the industry, has recently adopted measures to curb cargo ship emissions and reduce fuel consumption.
- Godar said his ship tracking efforts began in 2014 with the launch of Trase, an online database that follows the flow of agricultural commodities that are driving deforestation in tropical countries.
Did you subscribe to our daily newsletter?
It’s Free! Click here to Subscribe!
Source: grist.org
