The quantification of the actual reduction in green house gases sourcess emissions resulting from the substitution of fossil fuels with energy from waste biomass requires a complete lifecycle assessment (LCA). A systematic framework for estimating the net Green House Gases emissions from bioenergy systems and comparing them against the fossil fuel reference system that it would replace has been developed. The major considerations of the life cycle assessment approach to quantifying the greenhouse impacts of bioenergy are as follows: (more…)

Anyone who wants to save money on gas should be interested in the process of underground coal gasification, or UCG. It is an alternative way of obtaining clean fuels, one that has been explored more recently due to increasing oil prices. Considering that the process benefits everyone, it is surprising how few individuals have any idea what it is. Not only do its advantages affect everyone, but the ideas and technology behind UCG are also fascinating. For this reason, it is important to at least have an idea of what goes on underground during the coal gasification process. (more…)