- Individual Impact
- Combined Impact
40% of UK car journeys are less than 2 miles.
Cars emit twice as much pollution in first five minutes.
Walking or cycling for 30 mins burns 99 cal or more.
Walking helps you become more productive and alert.
If public transit use is instead managed to decline more slowly by 2050 this solution can save 7.5–23 gigatons of carbon dioxide emissions from cars. Consumers would save US$2.1–6.6 trillion in mobility costs.
Project Drawdown, Public Transit
In 2018, electric-bike riders traveled around 586 billion km, largely in China. Based on market research, it is projected to increase to 2–3.4 trillion km per year by 2050.
Project Drawdown, Electric bicycles
Impact metric calculations
To determine the carbon emission reduction estimates related to switching to greener forms of transit such as train, bus, carpooling, walking or cycling, the following calculations were performed:
(Fossil fuel car; kg CO2e/month) – (Lower emitting alternative; kg CO2e/month)
Fossil fuel car:
(miles/week) / (miles/gallon) x (kg CO2e/gallon) x (weeks/month) = kg CO2e/ month
Public transit (rail/train, bus/coach), electric bicycle, walking or cycling:
(# of journeys/week) x (miles/journey) x (kg CO2e/mile) x (weeks/month) = kg CO2e / month
(# of journeys/week) x (miles/journey) x (kg CO2e/mile) / (assumed carpooling occupancy) x (weeks/month) = kg CO2e / month
For detailed calculations, references and assumptions, please see our Methodology page.