Let me start off by saying that I'm only involved in this project in the design and tech side, no real labor yet. I hope that doesn't ruin this instructable for you, if I missed anything you can check our project website for extra details.
Visit any new construction, remodel, large painting project or stucco job and you will find 5 gallon buckets. Some of these may be reused for a short time but the majority will quickly find themselves in the local landfill. Each 5 gallon bucket uses approximately 1 cubic foot of landfill (a little less when compressed, but not much) so removing the quantity required to build this wall will reduce the landfill by many thousand cubic feet. This Bucket Wall is already attracting a lot of passer-by attention and it is expected that some new walls and other projects will be inspired by this technology, removing even more buckets from future landfills.
The Bucket Wall has a lot in common with building methods that incorporate straw bales, cord wood, bottles, and earth, in that it reuses existing products that might otherwise become landfill.
The ultimate hope for this project is that the methods perfected here will be structurally sound enough to use in ecologically friendly house construction and landscaping.