Bicycles are a wonderful means of transportation that helps preserve the environment: it reduces air contamination, ecological footprints, carbon emissions, is healthy and very inexpensive!
Up until World War II, bicycles were the most common means of transportation in cities. However, except for countries such as Holland or Belgium, they have become merely another recreational activity. However, the recent crisis and rise in the price of oil has contributed to a slight increase in the use of cheaper, more ecological means of transportation, such as the electrical bicycle.