I was glad to read about planet hour in this science post. I did take part last year and I still consider it a good tool. It will not change the course of our planet emissions but it is a way of taking part as a citizen in a global action to ask more important actions. It is a clear and direct symbol, it is not difficult but help us think a bit about our needs in our everyday life, and again it is global and we need global action and global solutions for this very global problem of climate change. Let’s start with this small but symbolically strong effort.