A recent study conducted by an international team of scientists, led by Christian Brand, has found that city dwellers can reduce their carbon dioxide (CO2) emissions by an average of 3.2 kg per day by cycling instead of driving. The study, published in the journal Science Direct, used data from the Physical Activity through Sustainable Transportation Approaches (PASTA) and a survey of 3,800 residents from seven European cities. The researchers noted that their approach was more comprehensive than previous studies, as it considered the composition and distribution of emissions across different modes of transportation.
The study found that most trips under 2 km were made on foot, while longer trips up to 10 km were typically made by car, despite the fact that cycling was a viable option. The researchers attributed this to the emissions generated by the “cold starts” of short car trips. The study also took into account the emissions generated by the production, maintenance, and disposal of cars, bicycles, and e-bikes.
The researchers concluded that switching from driving to cycling could reduce CO2 emissions by 14% per additional bike trip and 62% per avoided car trip. The study’s findings highlight the need for measures such as city tolls or restrictions on private car use to reduce greenhouse gas emissions in urban areas.
In conclusion, the study provides empirical evidence that cycling instead of driving can significantly reduce CO2 emissions in urban areas. The researchers’ comprehensive approach, which considered the entire life cycle of different modes of transportation, provides a more accurate picture of the impact of transportation on emissions. The study’s findings underscore the need for policies that encourage cycling and discourage driving in cities to mitigate the effects of climate change.
