As an observer, you have participated in most of the Conferences of the Parties (COP). You were very confident in previous editions, but seemed a little disillusioned after COP 25. Why was this? I was indeed still very excited at the 24th edition because it followed Paris (COP21), the great COP, the big trigger that brought something new: the economy. Paris brought together governments, companies and NGOs. At the 25th, we were at Greta coming to make her speech. We listened to her. People took to the streets. It became a global movement that raised awareness.