Promotional emails responsible for more than 2 million tonnes of CO2 emission
According to a study conducted by Clearfox, some 2 million tonnes of CO2 are generated by promotional emails sent in the UK. This emission level is roughly equivalent to the emissions produced by a city of 370,000 residents. The research finds that some 3.5 million emails were sent out every second in 2020. Each of these emails accounted for a carbon footprint of ten grams.