The King was a member of the audience for "Sustainable Development Dialogues — Water", which was arranged by the Brazilian government together with the UN.
The day concluded with The King and Queen attending a follow-up event for Stockholm+40.
In his speech, The King said: "I hope that the continued discussions today, during this side-event on the "Stockholm Call for Action", will be a success. Hopefully the discussions will be inspiring and enlightening, and will reflect the good discussions from the Stockholm+40 Conference. Let this event as well as the Rio+20 Conference encourage us to create a pathway towards sustainable development for the benefit of present and future generations."
Find out more about the Rio+20 environmental meeting.