350.org, which is sponsoring the day, gives us a sneak preview of the animations that will splash across Times Square on Saturday (warning: no headphones required):
Bill McKibben explains the significance of the number 350 to Stephen Colbert:
Current Green gets the scoop on how the 350 movement has gone viral from Bill McKibben and other 350-ers.
Denizens of the Maldives, an island nation threatened by rising sea levels, dramatize their plight with underwater escapades:
Greenpeace puts out the call for real action:
And, best of all, Umbra gets into the game:
Seen any other good Climate Action Day videos? Tell us all about them below in comments.