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Interaction Design, Cap and Trade, and Biodiesel

Looking back one, two and five years ago today (give or take!) on Worldchanging:

2009
Worldchanging Interview: Vinay Venkatraman on Interaction Design
Julia Levitt interviews Vinay Venkatraman, a partner at Copenhagen Institute for Interaction Design (CIID)...

2008
Cap and Trade 101
This post from Sightline is a great primer on Cap and Trade policy...

2005
Biodiesel 101
Jamais Cascio puts together a primer on biodiesel...


Other recent "look backs":
September 16
September 17
September 20

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