By the time my sister Ali arrived in the world in 1998, my older sister and I were already regular attendees of the 21st party scene. We joked, “When Ali is 21, I’ll be 39 and you’ll be 40”. At the time, this seemed like a million years away but we celebrated Enrika’s big 4-0 back a few weeks ago and this weekend, Ali celebrated her 21st. The major international news story of 1998 was the impeachment probe of President Clinton and in an Irish context, the Good Friday Agreement was signed. Although it didn’t make the top stories of 1998, the climate was on the agenda. That year, the UN Climate Change Conference took place in Argentina and included the 4th Conference of the Parties (COP4) to the United Nations Framework Convention on Climate Change (UNFCCC). Little was achieved. Fast forward those 21 years and the 25th session of this conference was to take place this year in Brazil. However, upon his election as president, Jair Bolsonaro, who is notoriously climate sceptical, pulled Brazil out of hosting the event. Now instead COP25 will be organized by Chile.