Australian Broadcasting Corporation: Buried under a giant stand of bamboo in northern New South Wales, two Australian soil scientists have made a discovery they believe will help save the planet. Leigh Sullivan, from Southern Cross University, explains the significance of the find. “This is a really old growth of bamboo here, it’s been here at least 50 years according to the aerial photographs,” he told The 7.30 Report. “So it’s been here a long time shedding leaves onto the ground and when you actually …