Benefits & evidence: environmental
CO2 pollution and global warming
Cycling produces no direct CO2 pollution. A certain amout will be caused by the production of bicycles, but this is much less than vehicle production. There is a vast amount of scientific research confirming this. Two examples, promoting biodiversity (fee needed) and pollution. Many European Union documents denote the importance of more cycling.
We know that in cities particulate pollution causes 8% of disease and death. Generally transport contributes to 25% of particulates, (in Birmingham, with little industry, rates may be higher).
We know that every 5000 miles we drive causes CO2 that produces 1 billionth degree of global warming.
Streets should be reclaimed for cycling and pedestrians (European Union).
A simulation to determine your contribution
See our simulation (with an explanation here) and calculate your own contribution. These amounts sound tiny, but in Birmingham we drive 1 billion miles a year, so the city (and its residents flying) is warming the planet about 1 fiftieth (0.02) degree each year. With so many 'car based' cities, the tiny amounts add up to a significant global temperature rise. We can calculate our own CO2 production from driving; we know that transport produces 25% of CO2 produced; we know the amount of global warming (2-10degrees/100years); thereby we can deduce our own contribution. (I appreciate the simulation is not accurate, but it does give an idea of our own contribution.