BONUS RETURN is an EU-funded project exploring how eco-technologies can help turn nutrients and carbon from environmental problems into societal benefits in the Baltic Sea Region.

The Baltic Sea is one of the most threatened marine ecosystems on the planet, as 95% of it is eutrophicated. Out of the world’s oceans suffering from acidification, 20% of these are in the Baltic Sea Region. A large part of the problem is the release of plant nutrients from agriculture and wastewater – which leads to eutrophication and eventually marine dead zones – along with a range of pollutants from industry and other sources. Despite significant investments in measures to reduce these emissions, progress has been slow while economic activities that generate them continue to grow. This poses challenges to the region’s fragile ecosystems as well as opportunities to innovate and cooperate across borders.


BONUS RETURN aims to contribute towards the production of a market and knowledge hub for policy and technical innovations in the Baltic Sea Region. Our work is backed by scientific research that aims to respond to local needs on policy, technical, cultural or implementation aspects of eco-technologies in the region.


Our mission is to partner and engage with many other Baltic Sea initiatives in the region, support existing and upcoming efforts, and bring together a variety of stakeholders – local authorities, researchers, policymakers, municipalities, investors, civil society and private-sector innovators – to find practical solutions towards reducing emissions by turning nutrients and carbon into profitable innovations, in the Baltic Sea Region.

Program facts

BONUS RETURN has received funding from BONUS (Art 185), funded jointly by the EU and Swedish Foundation for Strategic Environmental Research FORMAS, Innovation Fund Denmark, Academy of Finland and National Centre for Research and Development in Poland.

Project acronym: BONUS RETURN
Project full title: Reducing Emissions by Turning Nutrients and Carbon into Benefits
Project coordinator: Stockholm Environment Institute (SEI)
Project participants:

  • Warsaw University of Life Sciences (WULS)
  • Finnish Environment Institute (SYKE)
  • Uppsala University(UU)
  • Research Institutes of Sweden (RISE)
  • University of Copenhagen (UCPH)​

BONUS RETURN defines eco-technologies as: Eco-technologies are human interventions in socio-ecological systems in the form of practices and/or biological, physical and chemical processes designed to minimize harm to the environment and provide services of value to society.

Please contact us for more information info@bonusreturn.com.