Corals have hit their tipping point: What now?

You are a coral, a colourful marine invertebrate that is the backbone of many ocean ecosystems, hosting organisms in coral reefs. You absorb energy from waves, calming the wrath of the ocean before it hits shore. You provide food and medicine for the humans nearby. And now, you may be dying off forever. 

Recent analysis from the Global Tipping Points Report indicates that human-caused global warming is pushing coral reefs past their survival limit (also known as their ‘tipping point’). Earth system tipping points are the points at which Earth’s climate systems are pushed from one state to another, often irreversibly. Since these climate systems are interconnected, they can tip each other like dominoes, accelerating the speed and intensity of climate change. 

The Report indicates that over 80% of warm-water corals have experienced bleaching or death from warming waters and ocean acidification. Hundreds of millions of people depend on coral reefs for food, economic security through tourism and industry, and protection from coastline erosion and strong waves. The consequences of reaching this tipping point will be felt by many. 

So, what now? There are no other planets for us – is there a way to turn back time?

The Report emphasizes that this is not the time to give up; this is the time to work harder. It highlighted three main avenues for action: Promoting “positive tipping points” through innovation and regulation; demanding good, sustainability-focused governance; and climate adaptation. 

Promoting Positive Tipping Points

Positive tipping points use feedback-loop mechanics to reverse negative effects – they often use network effects (social influence campaigns or technological infrastructure) to push society towards more environmentally-conscious states. There is promise here: Renewable technology like electric vehicles is getting cheaper; markets are expanding for energies like green hydrogen; and climate communications are increasing societal awareness of climate effects. These technologies, markets, and communications interact with and reinforce each other, accelerating positive impacts on local and global communities. Positive tipping points could also include reintroducing ‘keystone species’ (or organisms with species centrality, which support biodiverse ecosystems) or other non-climate approaches. 

Climate Adaptation

Tipping points, and climate change more broadly, are human rights concerns. The communities that most rely on corals for their lives, health, and well-being are also some of the most exposed with regard to other consequences of climate change, including violations of the rights to health, life, water, food, future generations, and, of course, a healthy environment, outlined by the United Nations. As we act to mitigate the effects of tipping points and climate change, we must also adapt. Resilient local food systems must become a priority – this may include restoring sea gardens like Indigenous nations in the Pacific Northwest have done for millennia, or shifting from extractive agricultural systems to collaborative systems like the Haudenosaunee practice of planting the Three Sisters (beans, squash, and corn) together for better soil and food quality. Migration systems must be implemented for the highest risk communities, such as with the Australia-Tuvalu Falepili Union treaty. Infrastructure and emergency response must be prioritized for the once-in-a-lifetime natural disasters that are now once-or-twice-a-year natural disasters. 

This will be a massive economic and political undertaking, but we must act to protect the dignity of human life in this environmental crisis that we’ve caused. 

Demanding Good, Sustainability-Focused Governance

At this stage, so close to the point of no return for corals, we need accelerating action; we need policy that supports positive tipping points. We need to make it easier for people to access markets for green technology, for incentives to align helpful practices rather than harmful ones, and for human rights to be protected within this changing environment.

Policy needs to be active and focused. Effective policy guidance outlined in the Report includes financial motivations (like directing financial flows towards low-carbon sectors to mitigate perceived risks) and technological focus (supporting innovation) – but, the Report emphasizes, any policy must be grounded in community justice. One method of designing policy to fit this brief is to ensure that proposed policies include co-benefits – benefits associated with implementing the policy that do not include the direct climate benefits. For example, subsidizing a country’s renewable energy sector can reduce the amount of carbon released into the atmosphere, and it can also contribute to national security goals by reducing a country’s reliance on other nations for energy. Emphasizing co-benefits may make environmental policies more politically palatable and could assist with passing them through parliaments faster.

Politicians look where there is noise. Make noise! Contact your representative, your university, and advocate for our generation and all the generations that come after us. Any climate policy is typically better than none at all – be loud, and demand policies that take us closer to the green. 

The coral reef system is considered to be the first tipping point that we’ve reached; unless we drastically reduce emissions, it will not be the last. We cannot give up. At this moment, we have the chance to make a better world for ourselves and our future generations. We have the chance to act.

You are a coral, a colourful marine invertebrate that is the backbone of many ocean ecosystems, hosting organisms in coral reefs. You absorb energy from waves, calming the wrath of the ocean before it hits shore. You provide food and medicine for the humans nearby. You want to live. 

Local representatives: 

• Member of Parliament

  • Wade Grant. Email: wade.grant@parl.gc.ca 

• Member of Legislative Assembly (and Premier)

  • David Eby. Email: David.Eby.MLA@leg.bc.ca 

References:

Tipping points:

• https://global-tipping-points.org/ 

• https://www.theguardian.com/environment/2025/oct/13/coral-reefs-ice-sheets-amazon-rainforest-tipping-point-global-heating-scientists-report

• https://www.nature.com/articles/d41586-025-03316-w

• https://esd.copernicus.org/articles/16/275/2025/

• https://www.pbs.org/articles/coral-bleaching-what-to-know-about-a-global-tipping-point

Resilient food systems:

• https://www.seagardens.net/clamgardens

• https://environmentnext.org/clam-gardens-revitalizing-ecosystems-for-climate-resilience-and-cultural-restoration/

• https://indigenousclimatehub.ca/2024/11/traditional-food-systems-and-climate-change-adapting-indigenous-agriculture/

Climate adaptation:

• https://www.dfat.gov.au/geo/tuvalu/australia-tuvalu-falepili-union-treaty 

• https://www.canada.ca/en/environment-climate-change/services/climate-change/federal-adaptation-policy-framework.html

• https://www.unep.org/resources/adaptation-gap-report-2024

Huge thank you to Dr. Werner Antweiler for his guidance on this topic.