A look at one of the most exclusive holiday destinations in the world - Necker Island. This reveals how the rich take a holiday, and what it's like for the staff who serve them.
Can emerging technology defeat global warming? The United States has invested tens of billions of dollars in clean energy projects as our leaders try to save our crumbling economy and our poisoned planet in one bold, green stroke. Are we finally on the brink of a green-energy "power surge," or is it all a case of too little, too late?
At a time when the Earth's surface is changing faster than ever in human history, watch cities grow, forest disappear and glaciers melt. In the ever-growing grey of cities one man is feeding thousands of parakeets; in Sumatra a female orangutan and her daughter face life in a forest under threat; while in Tanzania local people use satellites to replant a forest, securing the future for a family of chimpanzees. This is our home as we've never seen it before.
Scientists deployed to Antarctica are accustomed to frigid temperatures, but few have experienced the condition one storm that is sweeping over Scott Base and the Ross Ice Shelf. Scott Base shuts down all missions and flights to and from western Antarctica have been cancelled; leaving them more isolated from the outside world than ever.
It's amazing to think that in the 1900s a mere tenth of the world's population lived and worked in cities. Now it is over half. With soaring populations, how will we keep our cities live-able? And what will the city of tomorrow look like?