Davos 2014: Matt Damon accepts Crystal Award
21 January 2014 Last updated at 17:50 GMT
Actor Matt Damon has been presented with the Crystal Award at the start of the 2014 World Economic Forum in Davos.
When it began in 1971, the Davos summit focused on European economic issues, but the agenda has grown to include wider global concerns.
Damon received the award for his social, environmental and humanitarian work, including founding Water.org with Gary White.