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 balloonPhotograph: Matt Cardy/Getty ImagesNichol sales up, up and awayPhotograph: Matt Cardy/Getty ImagesThe 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 pestsPhotograph: Matt Cardy/Getty Images
Living skeleton: the rainforest biome simulates the tropical regions of south east Asia, west Africa and South AmericaPhotograph: Matt Cardy/Getty ImagesHovering above the canopyPhotograph: Matt Cardy/Getty ImagesAn aerial view of the biome's huge crashing waterfallPhotograph: Matt Cardy/Getty ImagesLearning the ropesPhotograph: Matt Cardy/Getty Images
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