Posts under category: Climate Change


Red List assessment of Scleractinian corals 2018-2020

The challenge The first complete assessment of reef-building corals was completed in 2008 (Carpenter et al. 2008) from which the Red List Index of corals shows the most significant decline of all taxonomic groups assessed (fig. below), due to the impact of the 1998 global coral bleaching event. Cost/investment We estimate […]


Recurring bleaching in Mayotte

Major coral bleaching has been reported in Mayotte four times – in 1983, 1998, 2010 and 2016. During the 2010 event a survey carried out by the Tara Expeditions documented the bleaching in detail, estimating the full impact of the bleaching event.


Launch of the WIO scenarios

  On 9 July 2018 the scenarios for the future of the Western Indian Ocean/East and Southern Africa were launched at the Science-Policy forum of the Nairobi Convention in Durban, South Africa.  


A risk manager’s approach to coral reefs

Will a financial portfolio approach help to minimize losses to the world’s coral reefs, and those that depend on, them due to climate change? This is the objective of the research and conservation teams in the 50 reefs project and supported by Bloomberg Philanthropies, the Paul G. Allen Foundation and The […]


2017 status report on Western Indian Ocean coral reefs

Step declines in coral reef health resulted from major coral bleaching in 1998 (25% loss) and 2016 (10% loss). This is the main finding from the latest GCRMN regional report on the state of coral reefs of the Western Indian Ocean (WIO) which was officially presented on 7 December 2017 […]


Refilling the coral reef glass

David Obura’s editorial in the 22 Sept 2017 issue of Science magazine ‘is the coral reef glass half full, or half empty?’ emphasizes what we need to do to save and then rebuild coral reefs, rather than give up on them. Go to the Science issue page here, to read […]


The devastation of coral bleaching

This was the part of the workshop that I was most looking forward to, as the idea of diving in the Seychelles was very exciting. I had envisaged this underwater paradise with biodiversity and colour a-plenty. Unfortunately, the reality was quite different.