A landmark European commission is reframing the climate debate — not as an environmental abstraction, but as the defining public health emergency of our time. When people think about climate change, they tend to think in planetary terms: rising seas, melting glaciers, extreme weather. What receives less attention is what is already happening inside human bodies — and inside hospital wards, emergency departments and mental health clinics — right now.

A new report from the Pan-European Commission on Climate and Health, published in Geneva this month, makes that case with unusual directness. Convened by the World Health Organization’s Regional Director for Europe and chaired by former Icelandic Prime Minister Katrín Jakobsdóttir, the 13-member body brings together former heads of government and international health leaders with a shared, blunt message: the climate crisis is not a future threat. It is a present one — and health systems are already bearing the cost.

Europe is the fastest-warming region on earth, heating at twice the global average rate. That acceleration raises the risk of reaching climate “tipping points” — thresholds beyond which changes to key earth systems become self-sustaining and irreversible. The window for preventive action, the Commission warns, is closing.

Air pollution from fossil fuel combustion already kills hundreds of thousands of people across the European region every year. Heat extremes are straining cardiovascular and respiratory systems, particularly among the elderly. Disrupted food and water systems create downstream health pressures that fall disproportionately on the most vulnerable. And the psychological toll — what researchers are increasingly calling “climate anxiety” — is beginning to register as a measurable burden on mental health services.

The investment argument

What distinguishes this Commission’s framing is its insistence that addressing climate change is not merely a cost to be borne — it is an investment with measurable returns. Phasing out fossil fuel subsidies and redirecting that money toward renewable energy, public transport, sustainable food systems and climate-resilient health infrastructure would, the Commission argues, save lives, reduce health expenditure and lower the region’s dangerous dependence on volatile energy imports.

This is the health opportunity embedded in the crisis. Cleaner air reduces the burden of respiratory and cardiovascular disease. Active transport — walking and cycling infrastructure that replaces car journeys — cuts emissions while improving physical fitness. Shifts toward plant-rich diets lower both agricultural emissions and rates of diet-related chronic illness. These are not trade-offs between the economy and the environment. They are, the Commission argues, the same action viewed from different angles.

“Climate action is not merely a necessity,” Jakobsdóttir said at the report’s launch. “It is a high-return investment for a more just and resilient society.”

Rethinking the rules

The Commission’s 17 recommendations include a call for WHO to formally declare climate change a public health emergency of international concern — a significant step that would place it within the same governance architecture as pandemic preparedness. Critics of the current framework point out that the International Health Regulations were designed around discrete, time-limited epidemic events, not the slow-building, multi-system nature of climate harm. The absence of a formal emergency designation, the Commission argues, has allowed governments to treat the crisis as manageable background noise rather than an escalating acute threat.

There are also structural recommendations: mandatory climate training for health professionals, integration of climate indicators into national health system performance measures, and climate-friendly procurement standards across regional supply chains, which account for the majority of health care’s greenhouse gas footprint.

Underpinning all of it is a challenge to how governments measure success. GDP, as currently calculated, counts fossil fuel consumption as economic output while remaining blind to the health costs of pollution and the long-term economic damage of climate disruption. The Commission calls for new metrics that place health, equity and environmental sustainability at the center of decision-making — a shift in the very grammar of policy progress.

Whether governments move with the urgency the Commission demands remains uncertain. What the report establishes clearly is that the choice is no longer between acting on climate and protecting public health. For a growing body of evidence, those are the same choice.