4/4. Cameras in space show that Earth is changing rapidly. Cities sprawl while forests and glaciers shrink. But in Tanzania locals have regenerated the landscape to save chimpanzees. [S,AD,SL]
3/4. From space, Earth is a kaleidoscope. Turquoise plankton blooms trigger a feeding frenzy, China turns yellow with rapeseed flowers, and mysterious green lights appear in the ocean. [S,AD,SL]
2/4. From space, Earths surface is covered in wonderful shapes. Wombats dig burrows across the Australian outback and elephants in in the Congo clear an opening in the forest. [S,AD,SL]
1/4. From space, we follow elephants struggling through drought, reveal unknown penguin colonies from the colour of their poo, and discover strange ice rings that could endanger seals. [S,AD,SL]