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

2009
African Leaders Pursue “Malawi Miracle”
Ben Block reports on the "Malawi Miracle" of 2006 and how it is being replicated throughout Africa...

2008
The Real Green Heretics
Alex Steffen reflects on Wired's cover story "Inconvenient Truths: Get Ready to Rethink What It Means to Be Green"...

2005
Finding a Green Home
James Cascio writes about Green Moves, an UK based internet service that helps people find green homes; he also asks readers for tips on similar services in the US and elsewhere...

Other recent "look backs":
May 25
May 26
May 27