Mariam Said Ali, a 33-year-old mother of three, stood barefoot on the sun-scorched shore of Tumbatu island ... of fishers and small-scale farmers. Climate change has upended their lives ...

Small islands face some of the biggest threats from climate change, including stronger storms and sea level rise that are making it harder for people to remain in their homes and earn a living.

This extraordinary journey, documented by scientists, has captivated experts and may signal the impact of climate change ... kilometers away, near Zanzibar, an island off the coast of Tanzania ...