ISLANDS

White sands, palm trees, crystal waters - but the iconic South Sea idyll is under threat from devastating climate change. From bleached corals to rising sea levels, it sounds a dire warning to the world of what is to come.

Sparkling beaches, glorious colonial architecture - and an identity and culture defined by geographic and political isolation. But in today's global market can it remain unique and distinctive when its isolation comes to an end?

This great world treasure is under threat. Although it is one of the world’s most extraordinary island locations, its ecological diversity battles against a rising human population.

With untapped glacial rivers and snow-covered volcanoes, Iceland faces a dilemma over whether green energy or untouched wilderness is worth more. Does its future lie in reconnecting with its past?

Once the hub of a vast trading network, today the Spice Island is mired in poverty. Now Zanzibar's people must fight back with ingenuity and resourcefulness if they want to chart a new course for the future.