Planetary Health Matters: The planet is at a tipping point

Scaling regional power grids through the Asean Power Grid could unlock clean energy trade across borders, multiplying benefits for all. — 123rf

HAVE you ever leaned back a little too far while sitting on a chair? In that split second when you realise you have lost balance, gravity takes over and there’s no stopping the fall.

That, scientists warn, is how the Earth behaves when it reaches a tipping point.

The Global Tipping Points Report 2025 reveals that humanity has likely crossed its first major threshold: the widespread die-off of the world’s warm water coral reefs. These ecosystems, which sustain a quarter of all marine species, are now in critical decline as ocean temperatures exceed their thermal limits.

For Malaysia, the warning is personal. More than half of our reefs are bleached (when corals die, they turn white, looking bleached), and a third are dying or dead. This devastation not only erodes marine biodiversity but also threatens livelihoods tied to fisheries and tourism.

Tipping points are not isolated events. Like dominoes, one system’s collapse can trigger another, from melting ice sheets to the slowdown of major ocean currents, to shifts in monsoons, and forest decline. Every fraction of a degree of warming increases the risk of crossing these irreversible thresholds.

But just as the Earth can tip towards danger, it can also tip towards solutions, if we act swiftly and decisively.

Positive tipping points occur when small but strategic actions set off self-reinforcing change, shifts that accelerate until they become unstoppable. The plummeting price of solar power, for instance, was once unimaginable. Today, it is cheaper than fossil fuels in many countries. Last month solar and wind power together generated more electricity than coal plants for the first time globally.

Electric vehicles (EVs) are following the same exponential path. These are the kinds of tipping points that show how fast transformation can happen once there is momentum.

Malaysia and our Asean neighbours already hold several leverage points that could tip our region towards a more sustainable and resilient future.

> Renewable energy breakthroughs

Malaysia’s large-scale solar programme has made the country one of South-East Asia’s fastest-growing renewables markets. Vietnam’s rapid solar surge in 2020, a policy-driven tipping point, shows what is possible when incentives align. Scaling regional power grids through the Asean Power Grid could unlock clean energy trade across borders, multiplying benefits for all.

> Electrified mobility

Indonesia and Myanmar’s electric motorbike adoption, Thailand’s growing EV manufacturing ecosystem, and Malaysia’s growing EV incentives together point to a regional turning point. Once charging networks, battery supply chains, and affordable models become widespread, mass adoption will follow.

> Green finance as a catalyst

Malaysia’s leadership in Islamic finance positions it well to make sustainability bankable. By lowering the cost of capital for low-carbon energy alternatives and nature-based projects, finance can act as a powerful tipping lever, one that can accelerate transition across the Global South.

> Digital transformation for climate solutions

From artificial intelligence-assisted smart grids to satellite monitoring of deforestation, digital tools can strengthen governance and transparency. When data and information can flow freely, accountability and innovation follow. This is where Asean’s growing digital economy can become a force for good.

Each of these examples shows that small shifts can trigger large, self-sustaining change. The challenge is to align them so that they reinforce each other, rather than leaving them to act in isolation.

But this set of crises we face is not just environmental; it is moral. As ecosystems collapse, so do basic human rights to health, food, water, and a safe home. The Global Tipping Points Report highlights that tipping-point risks are indeed inseparable from human rights, equity, and justice. Preventing irreversible harm must therefore be treated as a legal and ethical duty, not merely an environmental goal.

The International Court of Justice’s recognition of climate protection as a human right in July this year may itself prove to be a positive tipping point; one that empowers citizens and communities to demand accountability.

In South-East Asia, a cooperative wave of positive tipping points is possible if nations work together instead of competing for fragmented gains. A regional focus on green trade, shared infrastructure, and cross-border investment could unlock exponential progress. This solidarity will be vital as the world heads to the climate change meeting, the 30th Conference of the Parties (COP30) in Brazil, next month.

We should not be paralysed by the backsliding of climate commitments by governments. Like the Mutirão, the Brazilian tradition of collective action, what tips the planet back into balance may not be any one government, but the sum of communities, businesses, and citizens leaning forward together.

The world is wobbling, but it hasn’t fallen yet. Time is ticking ever faster but the chair can still be steadied. Every policy, every investment, every personal choice matters, not because it fixes the problem alone, but because each decision joins a cascade that ripples outward into transformation.

And ever more so now, it needs unwavering commitment from the highest level of leadership to move all Malaysians forward safely.

Prof Tan Sri Dr Jemilah Mahmood, a physician and experienced crisis leader, is the executive director of the Sunway Centre for Planetary Health at Sunway University. She is the founder of Mercy Malaysia and has served in leadership roles internationally with the United Nations and Red Cross for the last decade. She writes on Planetary Health Matters once a month in Ecowatch. The views expressed here are entirely the writer's own.