IPA Senior Fellow Dr Jennifer Marohasy addresses the Climate Change Concern Forum at the Maroochydore Surf Life Saving Club on 14 July 2019.
In her discussion Dr Marohasy reveals that the corals at Heron Island remain constrained, just as they were in 1955 when her mother lived and worked on the Island. The growth of corals in 1955 were constrained by their inability to continue to grow-up, because sea levels were not rising. This continues to be the situation today — despite what you might to be told on the nightly news.
In fact, a peer-reviewed technical paper by L. Scopelitis et al. published in the journal ‘Coral Reef’ in 2011 explains that the period 2002 to 2007 has been the most constrained for Heron Island corals since at least 1940 because they have reached their vertical limit for growth and there has been no sea level rise.
The single biggest threat to the Great Barrier Reef is sea level fall. Sea levels did fall some 30 centimetres during the recent super El Nino event of 2015/2016 as explained in the presentation.
Filmed and edited by DRONEHACK.PRODUCTIONS.
For more information visit Dr Marohasy’s blog at www.jennifermarohasy.com or the IPA website at www.ipa.org.au.