From 6:30am to 7:30pm, Thursday, Feb 7 is the 10th annual carfree day in Bogotá. It is also known as Día del Aire Limpio (Clean Air Day). Some 1,090,000 cars are expected to be left at home. Bicycles will assist the fleet of buses in providing transport. About 347 kilometers (215 miles) of ciclorutas (bikeways and closed streets that offer security for bicyclists) will be provided. As well, four enormous cicloparqueos (valet bike parking lots) will offer parking security in the central business district and at transit hubs. Imagine if our Bike to Work Day followed a similar model and resulted in a tremendous mode shift with clean air. Visit El Tiempo to read, in Spanish, the newspaper account from Colombia’s major daily paper.