Looking back one, two and five years ago today on Worldchanging:

2009
Trip Planning For Cyclists: Coming Soon to the US?
Julia Levitt discusses easy online mapping programs for bike route planning…

2008
Ed Burtynsky’s Gallery for 10,000 Years
Regine Debatty looks at Canadian photographer (and Worldchanging Chairman) Edward Burtynsky’s 10,000-year gallery project…

2005
Transmegapolitan
Jamais Cascio explores the emerging concept of megapolitan areas and what they mean for urban planning…

Other recent “look backs”:
July 23
July 26
July 27

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(Posted by WorldChanging Team in Urban Design and Planning at 10:00 AM)