Starting 2004 at the former CTM - Centre for Transdisciplinary Environmental Research (now part of Stockholm Resilience Centre), Marmar has been working with a broad range of projects, including the successful exhibition Manna — Food in a New Light. She has worked as communications officer for Stockholm Resilience Centre and the EU project “Governance and Ecosystems Management for the CONservation of BIOdiversity (GEM-CON-BIO)".
Between 2006 and 2008, Marmar was course coordinator for the transdisciplinary course Världens eko (Perspectives on Sustainable Development).
Between 2007 and 2008 Marmar administrated the international BalticSTERN (Baltic System Tools for Ecological-economic evaluation: a refined Nest-model project) project, hosted by The Beijer Institute of Ecological Economics. The project (founded by Baltic Sea 2020) developed a proposal for an international research program, aiming at developing scientific knowledge and tools for integrated assessment, including a Stern-like review of the Baltic Sea. Marmar was, together with the Core Team, responsible for establishing cooperation with similar initiatives and networks from all Baltic Sea countries. The collaboration involved people from different national and international groups: research institutes as well as Swedish and international EPAs, Ministries of Agriculture, Environment and Foreign Affairs.
In May 2009, Marmar together with colleague Jennie Svedén, published a report on the ecosystem services of the Biosphere Reserve of Kristianstads Vattenrike on behalf of the Swedish Environmental Protection Agency. This social-ecological study identified ecosystem services generated by the flooded meadows in the Kristianstad area through interviews with local stakeholders, literature studies and field studies. The study was also presented at an international workshop on Ecosystem Services in Kristianstad in June 2009.
Since September 2008, Marmar has been a communication and policy officer at centre partner Baltic Nest Institute and is also their Web editor.
In September 2009, Marmar started at the newly launched BalticSTERN Secretariat, which is funded by the Swedish EPA and located at the Stockholm Resilience Centre.
The aim of the Secretariat is to lead and coordinate the infrastructure for an international research/policy project with the aim of contributing to the implementation of the Marine Strategy Framework Directive. Special focus should be put on the economic and social analyses that the directive aims at, with the hope that in the future develop a Stern-like review of the Baltic Sea.
Since 2004, Marmar has also worked as a consultant for different County Administrative Boards and Municipalities around Sweden, investigating the status of endangered freshwater mussels, presenting her work at various conferences.