When it comes to climate change impacts, they do not affect everyone in the same way. Marginalized communities and people with disabilities are often far more exposed to unequal impacts of climate change. However, they continue to suffer its consequences on the sidelines, with little representation in the decisions that shape their future – their safety, their health, and ultimately, their survival. Too often, no one asks for their perspectives at global climate summits, where world leaders negotiate how humanity will respond to one of the greatest environmental challenges of our time.
The climate-related emergencies expose the barriers that already exist in everyday life. They reveal the invisible fault lines through society, widening the gap between privilege and vulnerability, between those who can adapt and those who must simply endure. With the climate disasters becoming more frequent and severe, these inequalities reveal that climate change is not an equal threat.
This is particularly true about 1.3 billion people with disabilities worldwide. While rising temperatures, floods, storms, hurricanes, droughts, heatwaves, and wildfires threaten entire populations, their impacts are often far more severe for them. Research consistently shows that these people are two to four times more likely to die or suffer injuries during climate-related emergencies. Why is this the case? Why climate change is not an equal threat?
Climate Change Is Not an Equal Threat: Life-Threatening Realities For Millions of People with Disabilities
For decades, people with disabilities have experienced the consequences of a warming planet without having a meaningful voice in shaping the policies designed to protect them. Despite being one of the world’s largest population groups, they have remained largely absent from international climate negotiations and disaster planning. One of the main reasons their vulnerability is so high is that climate disasters magnify barriers that already exist in daily life.
For example, a person who uses a wheelchair but may not be able to reach an emergency shelter because it is inaccessible. or Imagine someone who depends on electrically powered ventilator or other life-sustaining medical equipment during a prolonged power may be in serious danger during a power outage. Likewise, a deaf or blind person who never receives an emergency warning or critical information about floods or otherwise in time because it is not provided in sign language, Braille, captions, or other accessible formats.
In each of these situations, the danger does not arise from the disaster alone – it arises from systems that fail to include everyone. For millions of people with disabilities, these are not hypothetical scenarios – they are life-threatening realities repeated during floods, storms, wildfires, and heatwaves across the world.
Although awareness of these challenges is gradually increasing and disability inclusion is beginning to receive greater attention in climate policy, meaningful change has only just begun to address the inequality threat by climate change. Ensuring that people with disabilities are fully represented in climate decision-making is not simply a matter of fairness – it is essential for building a safer, and more resilient future for everyone.
The Hidden Crisis of Mental Health and Heatwaves
One of the least discussed consequences of climate change inequality involves people living with psychosocial disabilities, including severe depression, schizophrenia, bipolar disorder, and post-traumatic stress disorder. Extreme heat is becoming one of climate change’s deadliest hazards. Studies have shown that people with psychosocial disabilities are three times more likely to die during heatwaves.
Many medications used to treat psychiatric conditions reduce the body’s ability to regulate temperature or increase dehydration. The anti-psychotic medication makes patients less tolerant to heat. As a result, patients become far more vulnerable during heatwaves, with the risk of heatstroke, and severe dehydration that can prove fatal for them. In this context, a striking example came from Montreal during the 2018 heatwave. Although people with schizophrenia represented only a tiny fraction of the city’s population, they accounted for more than a quarter of heat-related deaths. This is not merely a medical issue. It is a climate justice issue.
A Historic Step Forward
For years, disability organisations, researchers, advocacy groups, and the International Disability Alliance worked tirelessly to change this imbalance. In February 2026, an important milestone was finally reached. The Disability Caucus, representing around 120 disability organisations, received formal recognition within the United Nations climate process.
This recognition allows the group to coordinate advocacy efforts, participate more effectively during negotiations, and raise awareness about the unique challenges disabled people face as climate change accelerates. Although this marks meaningful progress, the Disability Caucus still lacks the full official status granted to other recognised constituencies within international climate negotiations.
Without equal standing, disabled voices remain limited in shaping global climate policy. The need would be for more action by incorporating the best research, equal official opportunities, and accessible climate policy.
Why Representation Matters
Inclusive climate action can’t be made without good climate policy, which can only be created by listening to those most affected. People with disabilities and climate disasters understand better than anyone the barriers that exist before, during, and after climate disasters. Their lived experiences reveal problems that policymakers often overlook:
- Inaccessible evacuation routes
- Emergency shelters that exclude wheelchair users
- Communication systems that ignore deaf or blind communities
- Lack of accessible transportation during disasters
- Greater exposure to infectious diseases after emergencies
- Dependence on electricity for life-supporting medical equipment
Including disabled people in climate negotiations is not about charity. It is about climate justice, about designing solutions that work for everyone.
Science Must Lead the Way to End Climate Change Inequality Threat
Another major challenge is the lack of disability-focused climate research. Without evidence, governments struggle to develop policies that truly protect vulnerable communities. Encouragingly, researchers are beginning to fill this gap. One example is the development of a Mental Health Vulnerability Index, designed to identify communities where climate change may disproportionately affect people with mental health conditions.
Innovative research like this helps governments prepare for heatwaves, improve emergency planning, and reduce health inequalities. However, these studies receive far less attention when disabled researchers and disability organisations are absent from international climate discussions. The people living these realities of climate disasters and disability should also help shape the science that informs future policy regarding climate change and disability.
Accessibility Must Become Standard Practice
Representation alone is not enough. Climate justice for people with disabilities requires the climate conferences themselves must become accessible. Past international climate summits have highlighted serious shortcomings, from venues that were difficult for wheelchair users to navigate to limited sign language interpretation and inaccessible conference materials. True inclusion requires practical changes such as:
- Wheelchair-accessible venues
- Comprehensive sign language interpretation
- Braille documents
- Live captions and accurate transcriptions
- Easy-to-read versions of technical documents
- Quiet, low-sensory spaces for participants experiencing sensory overload
Accessibility should never be viewed as an optional feature. It is a fundamental requirement for meaningful participation and inclusive climate adaptation.
Climate Justice Means Leaving No One Behind
Climate change is often described as humanity’s greatest shared challenge. However, a shared challenge requires shared participation. If nearly one-sixth of the world’s population remains excluded from decisions that directly affect their survival, climate justice cannot truly exist. The future of climate policy should not simply reduce greenhouse gas emissions. It should also reduce inequality and fully recognize climate change impacts on people with disabilities.
Recognising disability organisations as equal partners, investing in disability-led climate research, and removing accessibility barriers from international negotiations are practical steps that can make global climate action more effective – and more humane.
Nature reminds us that healthy ecosystems depend on diversity. Human societies are no different. A truly resilient future will only be possible when every voice is heard, every experience is valued, and no one is left behind simply because the world failed to make room for them. As climate change reshapes our planet, perhaps the most important question is not whether we can build a sustainable future – but whether we can build one that includes everyone.
