Today’s Video of the Day is a performance by Yo-Yo Ma as he took a stance at the World Economic Forum’s Annual Meeting in Davos last month. He performed three pieces, including ‘Mi’kmaq Honor Song’, ‘Prelude to Cello Suite No.1’, and ‘Over the Rainbow’, as a part of the climate activism movement ‘Performing Hope.’ The initiative is from Artic Basecamp and Climate Basecamp – founded by actor Rainn Wilson and leading academic Prof Gail Whiteman.