Hugelkultur is a gardening technique that has been used for many years in Germany and has been recently popularized by permaculturalist Sepp Holzer. It is a process for creating a new garden. Pile up some logs and smaller branches, cover it with leaves, sod, compost, grass clippings, seaweed, aged manure, straw, green leaves, and soil. The result is a new kind of raised bed without walls, that looks like a small hill.
No need to dispose of waste wood
No CO2 produced by burning the wood
Increased surface area for gardening
Composting wood generates heat extending the growing season
Can help end world hunger