Prince Harry pays tribute to Prince Philip with special Earth Day video

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The Duke of Edinburgh narrated several conservation specials, including ITV's <em>Now or Never</em>. Philip is seen on location in Africa during the making of this program in December 1970. Photo: &copy; PA Images via Getty Images

Prince Harry pays tribute to Prince Philip with special Earth Day video

The Duke of Edinburgh narrated several conservation specials, including ITV's <em>Now or Never</em>. Philip is seen on location in Africa during the making of this program in December 1970. Photo: &copy; PA Images via Getty Images