Ecoinvent 2.2 is a large and complex system (and Ecoinvent 3 will certainly be larger and more complex). The technosphere matrix of Ecoinvent has about 4000 activities, and 40000 links between those activities. The biosphere matrix has another 60000 links from activities to biosphere flows, but it is harder to visualize, so we ignore it for now.
from bw2data.io import EcospoldImporter from bw2data.io.export_gexf import DatabaseToGEXF EcospoldImporter().importer("path/to/ecoinvent/xml/files", "ecoinvent 2.2") DatabaseToGEXF("ecoinvent 2.2").export()
After messing around a bit in Gephi, and then manually labelling some nodes in Inkscape, the result is almost beautiful: