Gardening by balloon at the Eden Project

Eden Project horticulturist John Nichol takes in the view of the canopy of the rainforest biome, which is the biggest greenhouse in the world, as he prunes trees using a helium balloon Photograph: Matt Cardy/Getty Images Nichol sales up, up and away Photograph: Matt Cardy/Getty Images The giant air balloon, or 'canopy bubble', allows scientists to float and study high in the treetops of rainforests. At the Eden Project it is used to prune, pollinate and check for pests Photograph: Matt Cardy/Getty Images Living skeleton: the rainforest biome simulates the tropical regions of south east Asia, west Africa and South America Photograph: Matt Cardy/Getty Images Hovering above the canopy Photograph: Matt Cardy/Getty Images An aerial view of the biome's huge crashing waterfall Photograph: Matt Cardy/Getty Images Learning the ropes Photograph: Matt Cardy/Getty Images