Hanna Dijkstra

Verified

Hanna verified their affiliation via an institutional email.

Learn more

Verified

Hanna verified their affiliation via an institutional email.

Learn more

• PhD
• Guest researcher at Vrije Universiteit Amsterdam

Plastic pollution is a societal challenge that has gained global attention and become an urgent policy priority. Images of entangled marine life and heavily polluted beaches have come to symbolize the current system, characterized by an overdependence on plastic and mismanagement of waste. To become sustainable, a fundamental restructuring of the p...

As the global plastics crisis grows, numerous technologies have been invented and implemented to recover plastic pollution from the environment. Although laudable, unregulated clean-up technologies may be inefficient and have unintended negative consequences on ecosystems, for example, through bycatch or removal of organic matter important for ecos...

Plastic waste management is a complicated challenge that in recent years has gained attention as a global policy priority. In low- and middle-income countries (LMIC), waste management is heterogeneous and context-specific and many organizations provide needed waste management services, including entrepreneurs. Sustainable entrepreneurs are uniquely...

Plastic has become indispensable to human ways of life across the world, yet the environmental cost of our dependence is increasingly recognized as untenable. In 2022, 175 nations resolved to work toward a legally binding agreement on plastic pollution by 2024. Yet addressing plastic pollution requires changes across the entire production chain, fr...

This study fills an important gap in policymaker understanding of the effectiveness and implementation costs of marine plastic cleanup technologies. Previous studies have mainly listed inventories of different plastic litter cleanup technologies, not systematically examined their cost-effectiveness. Through a survey in Europe and North America that...

The overproduction and consumption of plastics has led to a global challenge of plastic pollution and waste. Citizens in particular have an important role to play as they interact with plastics constantly in their daily lives as consumers, but different plastics consumer profiles are hardly understood, resulting in a lack of tailored and effective...

Plastic pollution is one of the most challenging problems affecting the marine environment of our time. Based on a unique dataset covering four European seas and eight European countries, this paper adds to the limited empirical evidence base related to the societal welfare effects of marine litter management. We use a discrete choice experiment to...

Plastic waste is a complicated challenge that in recent years has gained attention as a global policy priority. In many high-income countries, waste management is a service managed centrally by municipalities and governments. In low-and middle-income countries (LMIC), waste management is heterogeneous and context specific and many private organizat...

Entrepreneurs are important actors in effectively managing marine plastic pollution, but they face unique challenges in developing sustainable business models within an unsustainable system. However, marine plastic entrepreneurs can engage with these tensions to create far-reaching social change beyond their business models.

Entrepreneurs working to tackle marine challenges are contributing to the Blue Economy by developing new technologies, services and products that can simultaneously stimulate economic growth and deliver environmental benefits. We study a subset of these blue entrepreneurs focused on marine plastic pollution mitigation, since little is known about t...

Marine plastic litter (MPL) is a growing global problem and its prevention requires public engagement and behavioral change. Statistics of public perceptions of MPL are scarce and hardly comparable due to varying definitions and interpretations of the concept. This study identifies and classifies relevant components of public perceptions of MPL bas...

Plastic pollution is one of the most challenging problems affecting the marine environment of our time. Based on a unique dataset covering four European seas and eight European countries, this paper adds to the limited empirical evidence base related to the societal welfare effects of marine litter management. We use a discrete choice experiment to...

We explore the role of entrepreneurs in stimulating the transition towards a new system in which marine plastic pollution is mitigated. To reduce plastic pollution of waterways and oceans, a system change of plastic related production and consumption patterns is necessary. To achieve such system change, companies, government actors, NGOs, financial...

This study reviews existing legal, institutional and policy tools and frameworks, relevant to the introduction and adoption of new marine litter clean-up technologies in two regional European seas, the Mediterranean and the Baltic. A combination of desk studies in six countries bordering the Baltic (Estonia, Germany, Sweden) and the Mediterranean (...

Plastic pollution, especially in marine environments, is a global problem that is currently inadequately managed. Solutions for marine plastic can occur through policy, behavior change and infrastructure improvements, but also through entrepreneurial ventures and technological innovations. Currently, information about these ventures and innovations...

Circular business models (CBMs) have emerged to tackle the growing challenge of plastic pollution, however little research to date has focused on how to scale up these business models. This paper seeks to answer the question: What role do stakeholder relationships play in upscaling circular business models? Preliminary results suggest that CBMs cre...

The Ecosystem Services Valuation Database (ESVD) is a follow-up to the “The Economics of Ecosystems and Biodiversity” (TEEB) database which contained over 1,300 data points from 267 case studies on monetary values of ecosystem services across all biomes. The TEEB database had not been updated since 2010 and naturally many gaps exist across biomes,...

This study reviews the scientific literature for business models contributing to sustainable plastic management and suggests avenues for future research. We define sustainable plastic management (SPM) as any technique along the waste hierarchy seeking to minimize the environmental damage of plastic material. Limited cases were found during the lite...

In the context of climate change, small island developing states (SIDS) need to engage in adaptation efforts. Due to the rural, remote and specific institutional characteristics of SIDS, these efforts are commonly implemented at the community level. Therefore, the adaptive capacity of the community is an essential attribute of the adaptation proces...

Sustainable finance is a critical component of nature conservation in the Caribbean, and this report defines the different mechanisms available to provide finance, alongside relevant examples and case studies in the Caribbean. The review of sustainable finance mechanisms and their applications is used to form recommendations and suggestions for imp...