The interviews were filmed at the October 12, 2017 European Environment and Sustainable Development Advisory Council annual meeting.
All the videos you can find here:
https://www.youtube.com/watch?v=XOeJpoK3bQo&feature=youtu.be
https://www.youtube.com/watch?v=fJCe2j6Pqp8&feature=youtu.be
https://www.youtube.com/watch?v=vN8eQtn0hQc&feature=youtu.be
https://www.youtube.com/watch?v=va90jbXbrLA&feature=youtu.be