The Global Coral Reef Alliance is a small, 501(c)(3) non-profit organization dedicated to scientific research and sustainable management of the most valuable and threatened of all ecosystems—coral reefs.
GCRA is a worldwide coalition of volunteer scientists, divers, environmentalists and other individuals and organizations, committed to coral reef preservation. We primarily focus on coral reef restoration, and cutting-edge research on impacts of coral bleaching, global warming, marine diseases, global sea level rise, and pollution on corals.
GCRA scientists work with community groups, environmental organizations, foundations, governments or private firms to build, restore and maintain coral reefs, nurseries and marine sanctuaries.
GCRA Projects include restoration of coral reefs and marine habitats for mariculture, tourism and shore protection.
GCRA invented and developed Mineral Accretion Technology™ and the Biorock™ method of electrical coral reef and marine ecosystem restoration, the HotSpot™ method to correctly predict coral bleaching from satellite sea surface temperatures, and integrated whole-watershed and coastal zone nutrient management (now commonly referred to as Ridge to Reef, or Hilltop to Ocean).
Founded in 1990, GCRA is the direct heir to a pioneering coral reef research tradition stretching back to the 1920s, and has the world’s largest collection of coral reef photographs from the 1940s, 1950s, and 1960s.
Restoring
Coral reefs and marine habitats all around the world
Protecting
Coastal shorelines from erosion and the effects of climate change.
Helping
Local communities develop sustainable maricuture practices.
RECENT UPDATES
ECONOMIC AND ENVIRONMENTAL IMPACTS OF TOURISM IN GRAND CAYMAN
Live broadcast of CPR Cayman Public information event on proposed cruise ship port referendum, March 18 2025 Featuring: 1. Community perspectives (0m to 59m) 2. Economic perspectives. Dr. Marla Dukharan. (59m - 1h 58m) 3. Slide show of reefs that will be destroyed by...
Melting Arctic Ice
New update from Project Save the World About "Arctic Climate Puzzles" Why didn't they tell us that the North Pole was melting? And what caused a big emission of gases and pollutants into the Arctic atmosphere if not a methane explosion (which it was not)?...
2024 record temperature effects on coral bleaching & ocean circulation
Author’s original version The Author’s Original Version (AOV) is the un-refereed author version of an article as submitted for publication in an Oxford University Press journal. This is sometimes known as the “preprint” or draft version. The author accepts full...
LATEST PAPERS
LATEST VIDEOS
Golf courses kill coral reefs and fisheries: harmful algae blooms and disease caused by nutrient runoff from golf course development on Guana Cay, Abaco, Bahamas
Thomas J. F. Goreau, PhD President, Global Coral Reef Alliance Introduction: Bahamas coral reef deterioration This study is thought the first ever to evaluate the health of coral reef ecosystems and fisheries before and after a golf course development....
Climate-proofing Coastlines with Biorock Technology
Climate Proofing Beaches and Coastlines with Biorock Technology https://youtu.be/cv2h8Uv-MEs Biorock Technology grows back severely eroded beaches at record rates by regenerating marine ecosystems and is the most cost-effective solution for protecting...
Close range underwater photogrammetry for high- resolution survey of a coral reef: A comparison between reconstructed 3-D point cloud models from still image and video data
A paper by Verena Vogler, original link here. Abstract Coral threat levels from climate change have increased around the globe. Coral reefs are nature’s best coastal protection device [MS48]. They dissipate portions of the wave energy through a system of...
High-Resolution Underwater 3-D Monitoring Methods to Reconstruct Artificial Coral Reefs in the Bali Sea: A Case Study of an Artificial Reef Prototype in Gili Trawangan
A paper by Verena Vogler, original link here. Intro This paper introduces new methods and techniques for artificial coral reef design and fabrication based on the Biorock(c) Technology to enable regrowth of damaged coral reefs and discusses state-...
Biorock Corals grow faster, longer and wider, depending on species and depth
A recent paper from Banda Aceh, Indonesia confirms yet again that Biorock accelerates the growth of corals around 4 times faster than controls: The escalation of coral growth by biorock technology applied in Sabang marine ecotourism AACL Bioflux, 2018,...
Maldives coral reefs; Past, present, and a sustainable blue future: In honour of Maizan Hassan Maniku
https://youtu.be/QtMW4xBHApQ
Biorock grows back shallow reef crest in Saint Barthelemy
Three power point presentations showing the Biorock coral reef projects in Saint Barthelemy were presented to the IFRECOR (the French National Agency that funds coral reef research in the French Overseas Territories of the Caribbean, Pacific, and Indian Ocean)...
HELP US SAVE CORALS
GCRA, is accepting donations to help fund our programs in 2019, training local communities in developing countries to use Biorock methods for large-scale marine ecosystem restoration and sustainable mariculture for the following projects:
Panama
Jamaica
Vanuatu
Grenada
Bahamas
Philippines
Palau
