The Suez Canal blockage caused 6,847 tonnes of excess CO2e*, The Eco Experts has discovered.
As the diagonally wedged Ever Given ship prevented around $10 billion (£7.2 billion) of trade per day, 12 ships were rerouted around Africa, by the Cape of Good Hope.
This decision added around 6,000 miles onto each ship's journey, resulting in a spike in emissions.
* carbon dioxide equivalent, a measurement that converts all greenhouse emissions into CO2 terms