I recently joined up for the Bike to Work challenge being hosted by the City of Ottawa. The point is to create a goal about how much you would like to bike to work during the month of May, post your goal on their website, and then work towards that goal. Everything was going really well, I signed up on the site, set my goal.... and then I realized a day later that I have moved and don't bike as much as I used to, In fact, I don't actually need to bike at all to get to work. So now I am stuck in the precarious postilion of in no way being able to meet my cycling goal. This has played heavily on my mind and it got me thinking... what is better for the environment, walking or biking. At first glance you would think walking has biking beat hands down on this one; but maybe not. Resources First consider the amount of stuff that goes into making a bike (frame, pedals, seat, etc.) and maintaining. This number isn't so bad if you consider that amount of time y...