Miranda Gibson is an environmental activist and school teacher from Australia who is known for her tree sitting to save the rainforest in Southern Tasmania from logging. Her 451‑day tree sit was "the longest running tree sit in Australian history."
On 14 December 2011, Gibson climbed up a 60m old-growth Eucalyptus delegatensis tree in the heart of Tasmania’s southern virgin rainforest. Gibson vowed to stay until the forest in the Styx Valley was protected. The area was imminently due to be logged by a Malaysian company, Ta Ann, despite being part of the area supposed to be protected under the fraught Forests Intergovernmental Agreement (IGA), an "agreement that promised an ‘immediate conservation agreement’ to cover 430,000 hectares of forest." The area is "one of the biggest untouched tracts of temperate rainforest left in the southern hemisphere," according to The Guardian.
Gibson "endured snow, hail and gale-force winds." She used a composting toilet, and slept under a tarp. A solar-powered computer and satellite technology enabled her to address environmental conferences from the tree.
She was forced down from the tree after 15 months due to a bushfire.
- Milne, Christine (7 March 2013). "Wildfire ends Miranda’s vigil. Brown fire probe call". Tasmanian Times. Archived from the original on 30 June 2013. Retrieved 14 October 2017.
- "Media Release: The world celebrates the success of community action to protect forests". The Observer Tree. 24 June 2013. Archived from the original on 14 October 2017. Retrieved 14 October 2017.
- "Wildfire forces anti-logging activist from tree after 449-day vigil". Mongabay. Archived from the original on 29 June 2013. Retrieved 2 June 2013.
- Birch, Simon (12 April 2012). "Tree-top vigil highlights destruction of Tasmanian forest". The Guardian. Archived from the original on 14 October 2017. Retrieved 14 October 2017.
- Williams, Glen (30 July 2012). "Miranda’s treetop vigil: I've spent 299 days up here". Women's Day. Archived from the original on 30 June 2013. Retrieved 2 June 2013.
- "Australian tree-sitter ends 15-month protest after bushfire". BBC News. 7 March 2013. Archived from the original on 14 October 2017. Retrieved 14 October 2017.