Last date for submission of paper: 25-Mar-2020; Contact person: unknown; A pre-conference workshop will be held Wednesday, April 22, more details here. The conference will be organized into two-and-a-half days of presentations (Thursday, Friday and Saturday, April 23-25, 2020). Papers on theory, methodology, and applications of emergy are welcome. As always, we will allow self-organization to prevail. Participants are encouraged to contact colleagues and friends to develop a "set of papers" that somehow reinforce each other around a particular theme