This app focuses on actions where the amount of CO₂ saved can be estimated with relative accuracy. However, for many environmental protection measures, such an estimation is difficult or impossible. Consequently, these types of activities cannot be logged here. This does not mean, however, that they are any less important. Many of these measures protect habitats, prevent pollution, or promote biodiversity.

Below, you will find examples of meaningful actions that—while they cannot be directly recorded in the app as CO₂ savings—nevertheless make a significant contribution to environmental protection.

Incidentally, all these actions are not only vital for environmental protection and biodiversity, but they are also great things to do when you’re feeling bored. After all, these activities are not just worthwhile—they’re fun, too!

1. Collecting litter in nature – Waste left in parks, forests, or near bodies of water can injure animals, contaminate soil, and break down into microplastics. By collecting litter, we help keep habitats clean and reduce pollution.
2. Growing insect-friendly plants – Native flowers, herbs, or shrubs provide food and habitat for bees, butterflies, and other insects. These creatures are essential for the pollination of many plants and for maintaining stable ecosystems.
3. Setting up an insect hotel – Insect hotels offer nesting sites and safe havens for various insect species. They can help supplement available habitats in gardens or on balconies, particularly in densely populated areas.
4. Planting trees or shrubs – New plantings create habitats for animals, improve the local microclimate, and can contribute to the long-term stability of ecosystems. Install birdhouses – In many cities, natural nesting sites are scarce. Birdhouses can help various bird species find suitable breeding grounds and stabilize their populations.
5. Keep waterways clean – Litter or pollutants in rivers, lakes, or along their banks can endanger aquatic organisms. Cleanup initiatives—or simply acting responsibly when visiting waterways—help protect these habitats.
6. Repair instead of discard – When items are repaired rather than replaced, resources are conserved and waste is reduced. This contributes to a more sustainable use of materials.
7. Avoid food waste – Food production requires agricultural land, water, and energy. When less food is thrown away, resources are utilized more efficiently.
8. Choose eco-friendly products – Products that are sustainably manufactured or feature minimal packaging can help reduce environmental impact and resource consumption.
9. Participate in local environmental initiatives – Collective actions—such as tree-planting drives, litter cleanup campaigns, or the maintenance of nature reserves—can help preserve natural spaces and raise awareness about environmental protection.
10. Participate in demonstrations – When large numbers of people demonstrate in support of stronger climate and environmental protection, it exerts pressure on policymakers and the business sector to take action to help the climate. Since these two sectors have a particularly significant impact on the climate, this form of activism yields particularly substantial results.
11. Many of these activities—and others like them—cannot always be directly translated into a specific, quantifiable reduction in CO₂ emissions. Nevertheless, they constitute a vital component of comprehensive environmental protection. Even if they cannot be logged within the app, they make a valuable contribution to safeguarding nature, biodiversity, and natural habitats.

Sources (German)

1. Umweltbundesamt, Abfallvermeidung und Ressourcenschonung, https://www.umweltbundesamt.de/themen/abfall-ressourcen, last seen: 06.03.2026
2. Europäische Kommission, Biodiversität und Schutz der Natur, https://environment.ec.europa.eu/topics/nature-and-biodiversity_de, last seen: 06.03.2026
3. Europäische Kommission, Folgen des Klimawandels: https://climate.ec.europa.eu/climate-change/consequences-climate-change_de, last seen: 06.03.2026