Rising temperatures due to climate change are expected to significantly increase mental health disorders across Australia, with young Australians at the greatest risk, according to new research by the University of Adelaide’s School of Public Health. The study predicts that the burden of mental and behavioral disorders could rise by nearly 50% by the year 2050. The Northern Territory is projected to have the highest risk due to its elevated average temperatures.
Professor Peng Bi, the lead author, emphasizes the need for urgent action to address this issue. From mild distress to serious conditions like schizophrenia, rising temperatures are making things harder for millions,” he said. The report highlights an annual loss of 8,459 disability-adjusted life years (DALYs) from 2003 to 2018 due to high temperatures.
A DALY measures the years of healthy life lost due to death or illness. The researchers used data from the Australian Institute of Health and Welfare (AIHW) to estimate the burden of mental and behavioral disorders. They compared it to daily mean temperatures across more than 2,300 jurisdictions nationwide. Their projections show a marked increase in mental health disorders due to rising temperatures by the 2030s and 2050s.
By the 2050s, the proportion of mental and behavioral disorders attributed to high temperatures could rise from 1.8% in the 2010s to as high as 2.8%. Dr. Jingwen Liu, the study’s first author, notes, “Our findings show that climate change will drive up mental health challenges beyond what population growth alone would cause. Young people often face these issues early in life and are especially at risk as the climate crisis worsens.
The report also considers the baseline temperatures to which residents in each area are accustomed, further individualizing risk assessments across jurisdictions.
Heatwaves, driven by global warming, have already proven deadly.
Increasing mental health challenges anticipated
Thousands have died during extreme heat events in the northern hemisphere this summer alone.
These events are prompting researchers to better understand the lethal thresholds of heat. Despite the higher relative risk in the Northern Territory, Dr. Liu underscores that southern regions such as Victoria and New South Wales also face significant challenges.
Even though the relative risk is higher in the Northern Territory, we still need to invest resources in the southern parts to address the issue,” Liu stated. The report acknowledges limitations, including the hypothetical nature of their model and uncertainties that could arise from future global pandemics like COVID-19. Other Australian researchers have echoed the alarm on the link between extreme heat and mental health.
Previous studies have connected rising temperatures with increases in suicidal thoughts and behaviors. For instance, a report found that emergency department visits for suicidality among young people increased by 1.3% for every one-degree Celsius rise in daily mean temperature. Curtin University’s Dr.
Lucas Hertzog found that 264 suicides between 2000 and 2019 could be attributed to climate change-induced heat anomalies. Following these findings, researchers call for immediate action to prepare for an increase in mental health needs. “Policymakers must step up with targeted, people-centered strategies to protect mental health as temperatures climb,” Professor Bi said.
“This isn’t just about health — it’s about building stronger, more resilient communities for the future.”
Image Credits: Photo by Xavier Coiffic on Unsplash
Noah Nguyen is a multi-talented developer who brings a unique perspective to his craft. Initially a creative writing professor, he turned to Dev work for the ability to work remotely. He now lives in Seattle, spending time hiking and drinking craft beer with his fiancee.
