Dr. Stacy Jupiter is the Executive Director of the Wildlife Conservation Society’s Global Marine Program. Melissa Wright is Bloomberg Ocean Initiative Lead at Bloomberg Philanthropies.
For years, the dominant story on coral reefs has been one of inevitable loss, with news headlines focusing on mass bleaching, ecosystem collapse, and catastrophic tipping points. As ocean temperatures continue to rise, many people have come to see the decline of the world’s reefs as unavoidable.
The threats are real and urgent, but new evidence points to a more complicated and useful conclusion: some reefs still have a meaningful chance to survive and recover, provided they are protected.
A major new analysis, published today with the support of Bloomberg Philanthropies, identifies more than 165,000 square kilometers of coral reefs, across 71 countries and 100 territories and jurisdictions, with the strongest potential to withstand and recover from climate impacts.
Drawing on more than 45,000 coral surveys, along with decades of climate and ocean data, the research finds that three times more reefs may be capable of surviving the climate crisis than previously understood. That has major implications for reef-dependent communities, food security, coastal protection, fisheries, tourism, and national economies.
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Dr. Stacy Jupiter is the Executive Director of the Wildlife Conservation Society’s Global Marine Program. Melissa Wright is Bloomberg Ocean Initiative Lead at Bloomberg Philanthropies.
For years, the dominant story on coral reefs has been one of inevitable loss, with news headlines focusing on mass bleaching, ecosystem collapse, and catastrophic tipping points. As ocean temperatures continue to rise, many people have come to see the decline of the world’s reefs as unavoidable.
The threats are real and urgent, but new evidence points to a more complicated and useful conclusion: some reefs still have a meaningful chance to survive and recover, provided they are protected.
A major new analysis, published today with the support of Bloomberg Philanthropies, identifies more than 165,000 square kilometers of coral reefs, across 71 countries and 100 territories and jurisdictions, with the strongest potential to withstand and recover from climate impacts.
Drawing on more than 45,000 coral surveys, along with decades of climate and ocean data, the research finds that three times more reefs may be capable of surviving the climate crisis than previously understood. That has major implications for reef-dependent communities, food security, coastal protection, fisheries, tourism, and national economies.
Essential natural infrastructure for communities
The findings make clear that reefs will not all respond to climate impacts in the same way. Some are located in rare underwater cool spots that can help shield them from extreme heat. Some show greater resistance to bleaching and other climate-related stress. Others recover more quickly after severe disturbances. These differences matter because they show where protection can have the greatest long-term impact.
More than 500 million people depend on reefs for food, livelihoods, and coastal protection. For those communities, climate-resilient reefs are not an abstract conservation priority. They are essential natural infrastructure. They help protect coastlines, sustain fisheries, support local economies, and reduce climate risk. Because ocean currents move coral larvae and marine life between reef systems, some of these reefs may also help regenerate wider reef ecosystems after climate shocks.
This should change how governments, funders, and conservation partners prioritize action.
Comment: The ocean, our planet’s forgotten hero, deserves a formal place in UN climate talks
Climate change remains the greatest long-term threat to coral reefs. At the same time, many of the pressures pushing reefs closer to collapse are immediate and local. Sewage pollution, deforestation, agricultural runoff, destructive fishing practices, and poorly managed coastal development continue to damage reefs that are already under stress. Recent research shows that water pollution and fishing pressure are now among the leading local threats affecting nearly two-thirds of the world’s coral reefs.
These pressures can be reduced. Governments and local partners are already working to improve reef management, cut pollution, strengthen enforcement, and protect critical ecosystems. Those efforts need to move faster, alongside much stronger action to reduce greenhouse gas emissions.
Prioritising climate-resilient reefs
The new maps of climate-resilient reefs give governments, communities, and reef managers a clearer basis for action. They show where reefs have the strongest potential to persist over time, and where protection can deliver the greatest benefits for people, coastlines, and economies.
Right now, only around 28 percent of the identified climate-resilient reefs fall within protected or conserved areas. If these reefs are among the most capable of surviving climate impacts and helping regenerate broader reef systems, they should be prioritized for protection, management, and investment.
The case for action is practical as well as ecological. Healthy reefs can reduce wave energy by up to 97 percent, helping protect coastlines from storms, flooding, and erosion. They support fisheries that feed millions of people, sustain tourism jobs and local economies, and help reduce climate risk for vulnerable coastal communities.
For many families, a healthy reef means food, income, and protection when storms hit. For Indigenous Peoples and coastal communities, reefs are also tied to culture, heritage, identity, and traditional knowledge systems.
Ocean conservation must catch up
Governments are beginning to recognize the urgency of protecting climate-resilient reefs. At last year’s UN Ocean Conference in Nice, 11 countries signed a declaration committing to stronger protection of these reefs, including action to address destructive fishing, pollution, and unsustainable coastal development.
As leaders meet in Kenya this week to discuss the challenges facing the world’s ocean, more governments should join the declaration and help build a broader coalition committed to safeguarding these critical ecosystems.
As coral reefs pass tipping point, ocean protection rises up political agenda
Some countries are already showing what this leadership can look like. Brazil has included corals in its national climate plans. The Bahamas is embedding reef protection into national policy and local stewardship systems. The declaration offers a way to build on these efforts and scale them globally.
But commitments will not be enough. Success will depend on implementation. That means stronger protection and management, reduced local pressures, increased investment, and meaningful support for the Indigenous Peoples and local communities stewarding these ecosystems.
The science is clear. Many reefs still have the capacity to persist and recover. The question is whether policy and investment will move quickly enough to protect them, so they can continue sustaining communities, economies, and coastlines for generations to come.
