Mental health issues such as anxiety, stress and depression are especially since the pandemic on a massive rise around the globe (1) and scientific studies have shown that we spend around 90% of our time indoors (2). At the same time the research is becoming more and more clear: nature does not only help to improve our physical but also psychological wellbeing, summarized under the term “Green Care”, standing for a “range of activities that promote physical and mental health and well-being through contact with nature” (3). Several studies have shown that when we spend time in nature our stress levels are lowered (4), our anxiety level decreases (5) and the time spent in forests can even help in preventing or curing burn-out and depression (6). We can reconnect to our emotions which facilitates personal insights and leaves us feeling more connected to ourselves (7) and cope better with stress, which makes us more resilient and positively affects our mood states (8). Furthermore, our social connection can be facilitated when we deeply experience forests together (7). But it is not only humans who benefit from spending time in nature:  There might also be a positive outcome for nature, because research shows that if we feel connected we are more motivated to behave environmentally responsible (9) and support pro-environmental outcomes (10).
But even though research results are so promising, Green Care initiatives often face difficulties due to uncertainties in financing, low public awareness, recognition of the role of such initiatives and there has hardly been any integration into health policy to date. The Green4C project, co-funded by the Erasmus+ Programme of the European Union, has been working the last three years towards the innovation and promotion of Green Care. In order to find innovative solutions to mainstream Green Care, six hackathons in six countries were organized, one of which was the Green Care Hackathon on the 23^rd of November at the EFI office in Bonn.