
Looking back one, two and five years ago today on Worldchanging:
2009
The Real Green Building Challenge: Creating Policy That Works
Sarah Kuck argues that the time for heralding each new green building as a symbol of sweeping change is over. To get our greenhouse gas emissions and energy consumption under control, it's time to make green building the norm...
2008
Visualizing Social Networks…in Excel
Ethan Zuckerman reflects on the Microsoft Research Faculty Summit conference and shares information on Marc A. Smith's research on social network mapping and user groups, which he identifies as coming in three types: Answer People, Reply Magnets, and Discussion People...
2005
Stick It In Your Ear
Jamais Cascio reports on three new hearing augmentation devices for the hearing able, from the "Mute" that samples and silences selected noises, to the "Goldfish" that can playback recorded sounds from the last 10 seconds...
Other recent "look backs":
July 26
July 27
July 28
