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Global Warming Makes Heatwaves 5x More Likely
22 Jan
Summary
- Human activity made Australia's heatwave 5 times more likely.
- Extreme heat causes more Australian deaths than all hazards.
- January heatwave temperatures were 1.6C hotter due to climate change.
New analysis indicates that human-caused global heating significantly intensified Australia's severe early January heatwave, making it five times more probable. This extreme weather event, the worst since the 2019-20 black summer, saw temperatures soar above 40C across several states.
The World Weather Attribution report highlights that greenhouse gas emissions amplified the heat by approximately 1.6C, outweighing the cooling effect of a weak La Niña. Scientists emphasize that heatwaves are Australia's deadliest natural hazard, and this trend is worsening.
Experts caution that the nation's capacity to physically withstand such extreme temperatures is nearing its limit. Without substantial changes in carbon emissions, heatwaves similar to the recent event could occur annually, posing a critical threat.
