1. How can up to a fifth of the energy be saved when baking bread, cakes, casseroles & co. ?

2. What percentage of plastic waste in Germany is recycled?

3. It is unhealthy to boil already boiled water a second time

4. Smart heating: How much energy does a smart home with intelligent heating control save?

5. Repairing instead of throwing away: How big is the climate protection effect when a device is repaired and reused?

6. What does sustainability mean?

7. How to clean your own household in the most environmentally friendly way

8. Saving energy means

9. What percentage of a household's annual electricity consumption is due to the operation of appliances?

10. Stinginess for the environment - which tip saves money?

11. What is the best way to save energy with your refrigerator?

12. If you pay attention to sustainability when buying food, you ....