Tony de Brum saw the effects of rising seas from his home in the Marshall Islands and became a leading advocate for the landmark Paris Agreement and an internationally recognized voice in the fight against climate change.
De Brum, who was the Pacific nation's climate ambassador and former foreign minister, died Tuesday in the capital Majuro surrounded by his family, according to Marshall Islands President Hilda Heine. He was 72.
After witnessing nuclear testing in the islands while growing up, De Brum also fought against nuclear weapons and for his nation's independence.
Heine described him as a national hero.
"The very existence of the Paris Agreement owes...