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
CAYMAN CLIMATE CHANGE ADAPTATION SOLUTIONS
https://www.youtube.com/watch?v=TWmo9SeT7RE
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)?...
LATEST PAPERS
LATEST VIDEOS
Bad Science and Good Intentions Prevent effective Climate Action
https://eartharxiv.org/repository/view/6244/ Bad Science and Good Intentions Prevent effective Climate Action Graeme MacDonald Taylor, Peter Wadhams, Daniele Visioni, Tom Goreau, Leslie Field, Heri Kuswanto 13 November 2023 https://doi.org/10.31223/X5DT25 Summary...
Electric Reefs Enhance Coral Climate Change Adaptation
Electric Reefs Enhance Coral Climate Change Adaptation, a chapter by Tom Goreau in the book: Corals - Habitat Formers From the Shallow to the Deep (Giovanni Chimienti, Editor), explains how the Biorock process greatly increases resilience of corals and marine...
Coral Reef Electrotherapy: Field Observations
This paper presents the first comprehensive review of all visible biological effects of the Biorock electrolysis method of marine ecosystem regeneration that have been seen since the invention of the method in 1976. Extraordinary benefits are seen for the health of...
MALDIVES BIOROCK: Past results & future applications
Maldives Biorock Figures compressed January 31, 2022 GCRA White Paper MALDIVES BIOROCK: Past results & future applications Thomas J. F. Goreau, PhD President, Global Coral Reef Alliance SUMMARY The Maldivian way of life for more than four thousand years is under...
Palmetto point development: potential impacts on Barbuda’s fisheries
Thomas J. F. Goreau, PhD President, Global Coral Reef Alliance Any development at Palmetto Point would cause significant, and probably irreversible, deterioration of water quality in Codrington Lagoon, Barbuda’s major fish nursery ground. Codrington...
BIKINI SCIENCE
New update from Project Save the World About “Bikini" Bikini Atoll was the site of U.S. nuclear tests in the 1940s and 1950s. Thomas Goreau's grandfather was the photographer in charge of documenting the events – "before" and "after." PROJECT SAVE THE WORLD JAN 22...
Maldives coral reefs; Past, present, and a sustainable blue future: In honour of Maizan Hassan Maniku
https://youtu.be/QtMW4xBHApQ
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
