From straight.com Vancouver’s Online Source
by David Suzuki, March 13, 2012
Cities cover just two percent of the world’s land area, yet they account for about 70 percent of greenhouse gas emissions. According to the Unitied Nations, 59 percent of us now live in cities; in developing countries, 81 percent of people are urbanites. And those figures are rising every day.
To read the complete article follow this link: http://www.straight.com/article-634356/vancouver/david-suzuki-benefits-cycling-go-beyond-reducing-climate-change