United Nations, United States, (AFP) – Ugandan climate activist Vanessa Nakate recently traveled to the drought-ravaged Horn of Africa to hear from children suffering from starvation. The next day she learned that one of the boys she met had died.

It is for such children, whose lives have been shattered by the global climate crisis, that Nakate, UNICEF’s newest Goodwill Ambassador, has set out to make their voices heard.

“I’m hoping to continue doing the same thing to amplify, and really platform, the stories of the children … that are suffering, because of the climate crisis,” Nakate, who is 25, said in an interview.

Inspired by Sweden’s climate crusader Greta Thunberg, several years ago Nakate founded the Rise Up Climate Movement in her native Uganda and has spoken at prestigious international climate events.

On Thursday, she was appointed the newest Goodwill Ambassador for UNICEF, the United Nations’ children’s agency, joining recent high-profile supporters such as actor Priyanka Chopra Jonas, singer Katy Perry and Syrian refugee and education activist Muzoon Almellehan.

“In my journey of activism, I’ve always told myself, and I’ve always believed that every activist has a story to tell,” Nakate said. “And every story has a solution to give and every solution has a life to change.”

The activist says children and women suffer the most from global warming and her mission is make their voices heard — but not to speak on their behalf.