Medical experts and global health organizations are calling on the World Health Organization to declare the climate crisis a global public health emergency.
This designation would signal that environmental degradation is no longer just an ecological issue but a direct threat to human survival. By framing climate change as a health emergency, advocates aim to mobilize faster funding and policy interventions to protect vulnerable populations from escalating environmental risks.
More than 200 medical journals [4] have joined the call for the WHO to acknowledge the crisis. These journals, along with the American Medical Association and the American Heart Association, argue that the current trajectory of the planet poses an immediate risk to global stability. Experts said the climate crisis should be declared a global public health emergency [1].
The push for this declaration intensified in May 2026, with various medical groups highlighting the link between environmental collapse and human illness. Medical groups said the climate crisis is a ‘health emergency’ [3]. They point to a variety of drivers, including extreme heat, wildfires, sea-level rise, and biodiversity loss, all of which threaten human health [5].
On June 24, 2026 [5], medical groups further emphasized the urgency of this agenda. The movement highlights that healthcare systems, including those in Canada and the U.S., are facing increasing pressure as climate-related health issues rise. The coordinated effort seeks to shift the global narrative from long-term environmental goals to immediate medical necessity.
While the health crisis unfolds, other scientific efforts continue to map the biosphere's fragility. Recent ocean expeditions in Brazil have explored the "twilight zone"—depths between 200 and 1,000 metres [2]—where an estimated 90% [2] of the global biosphere is contained. During one such expedition, researchers discovered 31 new species [1]. These findings underscore the biodiversity loss that medical experts said contributes to the broader public health emergency.
“Experts say the climate crisis should be declared a global public health emergency.”
The effort to reclassify climate change as a medical emergency represents a strategic shift in climate activism. By moving the conversation from the environment to public health, medical professionals are attempting to leverage the authority of the WHO to force governments to treat carbon emissions and ecological collapse as acute health threats rather than distant policy goals.
