openLCA archived user forum

Hi Andreas, unfortunately I can't see how to fix the problem with this approach. I am using ecoinvent (unit-process version) and my self created processes are all unit processes, too. However, there are direct emissions in some processes that are negative (e.g. to respect the soil as methane sink in...

Hi there, regarding the negative land use values: I would interprete negative land use values as changing land that is used for industry/agriculture to natural state. I don't see that this is given in the waste treatment or market process but it could be an issue of interpretation. Regarding the pro...

Hi, I am facing a similar problem. Most of my results are negative, although this can't be possible. I already checked the points you mentioned, Andreas: I am not using system expansion (but economic allocation with ecoinvent apos), I set waste treatment to 0, omission is possible but not at that ex...