The movement tied together environmental design, techno-progressivism, and global citizenship.
[1][2] It was founded in 1998 by Bruce Sterling, a postcyberpunk science fiction author.
Sterling always remained the central figure in the movement, with Alex Steffen perhaps the next best-known.
Steffen, Jamais Cascio, and Jon Lebkowsky, along with some other frequent contributors to Sterling's Viridian notes, formed the Worldchanging blog.
[6] Sterling formally closed the Viridian movement in 2008, saying there was no need to continue its work now that bright green environmentalism had emerged.