The Great Lakes-St. Lawrence Seaway is a vital North American economic and environmental resource, transporting more than 135.7 million tonnes (Mt) of cargo with a value of US$26.1 billion in 2022 across a 2,300 miles deep-draft inland navigation system. Awareness is also growing of the impacts of greenhouse gas (GHG) emissions and overall air pollution from shipping. Global maritime shipping emitted about 1 gigatonne (Gt) of carbon dioxide (CO2) in 2018. According to the U.S. Environmental Protection Agency (EPA), ships and boats emitted 50 Mt of CO2 equivalent in 2021, or equal to 2.8% of U.S. transportation GHG emissions. This […]
