In this category, I write about easy and more advanced things that you can do to reduce yourr CO2 emissions.
One way to save energy is to put goods that were cooled (e.g. milk, butter) immediately put in the fridge. This way, they do not heat up and do not need to be cooled down again.
This tip is relevant until all energy supply is switched to green electricity. Even after a complete changeover, it is relevant, as an increase in power consumption will require more modules/wind turbines/…, which must be produced.