This file is from Wikimedia Commons (production) and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionBan Ki-Moon Davos 2011 Cropped.jpg
Deutsch: UN-Generalsekretär Ban Ki-Moon während der Sitzung zur "Bekämpfung chronischer Krankheiten" auf dem Jahrestreffen 2011 des Weltwirtschaftsforums in Davos (Schweiz) am 27. Januar 2011
English: Ban Ki-moon, Secretary-General, United Nations, New York looks on during the session 'Combating Chronic Disease' at the Annual Meeting 2011 of the World Economic Forum in Davos, Switzerland, January 27, 2011.
This image, originally posted to Flickr, was reviewed on 19 July 2012 by the administrator or reviewerMaterialscientist, who confirmed that it was available on Flickr under the stated license on that date.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.