Hi.
I use ecoinvent v3.9.
I see in my database that the impact assessment method 'ecoinvent - EF 3.1' (and basically all others) are empty. I can create a set of normalization and weighting.
So I have 2 questions :
- Why is it empty ?
- If I have to create a set, where do I get the data from ?
Thank you for your help
Kevin