[3] He was previously the Chair of the Jo Cox Foundation [4] and a board member of Girls Not Brides, the Global Partnership to End Child Marriage.

With his father as captain, Grono sailed from England to Australia from October 1976 to December 1977, accompanied by his mother, younger brother and 25 other crew members.

He and his family repeated the voyage in 1981/1982, this time also taking part in the filming of “Nate and Hayes” in Fiji with actor Tommy Lee Jones.

[9] In 2003, Grono began working for the International Crisis Group, the world's leading conflict prevention NGO based in Brussels, Belgium.

Grono has written widely on international justice, conflict prevention, human rights, and modern slavery in the New York Times,[11] The Guardian,[12] Foreign Policy,[13] Huffington Post[14] and elsewhere.

[15][16] Grono was co-chair of the Jo Cox Foundation from late 2016 to 2019[17] and a board member of Girls Not Brides, the Global Partnership to End Child Marriage, since 2015.

The Fund has worked with over 120 frontline partners around the world to directly liberate 30,767 people from slavery and enable over 153,000 at risk children to return to school.