Miranda Gibson

Miranda Gibson is an Australian environmental activist and school teacher in the heart of Tasmania's southern rainforest. Gibson vowed to stay until the forest in the Styx Valley was protected. The area was due to be logged by a Malaysian company, Ta Ann.

Gibson had a platform built at the top of the tree, and was connected to a safety harness at all times. During the sit they experienced snow, hail and gale-force winds. they used a composting toilet, which they would lower down to their support crew on the ground, and slept under a tarp. A solar-powered computer and satellite technology enabled them to write a blog and attend environmental conferences, school groups and festivals by video link. Gibson did not come down from the tree at any point during their sit, which broke the previous Australian record of 208 days, set in 1995. days as a safety precaution due to a nearby bushfire. they voiced their disappointment in having to come down under those circumstances, though said they were proud of their achievement and vowed to keep fighting for Tasmania's forests. In June 2013, Tasmania's Wilderness World Heritage Area was officially extended by , which included the area their tree sit had been in. Gibson said they were thrilled with the decision; they had been contemplating returning to the tree if the World Heritage space had not been extended.

Gibson is also a co-founder of Inside Out, an Australian quarterly newsletter aimed at LGBTIQ prisoners. On behalf of Inside Out, Gibson has advocated to overturn the ban on pen pal programs in Victorian prisons,