175 Countries Sign Landmark Climate Agreement
Hindou Oumarou Ibrahim, a fiery 32-year-old from Chad, took the podium here at the United Nations on Friday morning in front of nearly 200 world leaders.
They'd gathered in record numbers on Earth Day to sign the Paris Agreement, humanity's best shot to date at fixing climate change and preserving a habitable planet for future generations.
But when she looked out at the crowd, her mind went blank.
Ibrahim didn't see the diplomats, she told me later.
She only saw her mother -- and her nomadic community in the Sahara.
So she felt compelled to tell their story.
International Maritime Organization