The Earth is warming, and the latest data makes this very clear. According to the 2025 State of the Global Climate report by the World Meteorological Organization, we’ve seen the 11 hottest years on record, with 2025 being among the hottest three.
What’s Happening to Our Climate?
The evidence points to severe challenges. Here’s a quick look at four vital indicators of climate change:
1. Carbon Dioxide Levels
We’re currently experiencing the highest levels of carbon dioxide in the atmosphere, about 50% more than before industrial times. The emissions remain high due to our dependence on fossil fuels, reaching record levels in 2025.
2. Rising Temperatures
This year, the global temperature averaged 1.43°C above pre-industrial levels, making it one of the hottest years recorded. Temperatures remain unusually high even during La Niña, a weather pattern that usually cools global temperatures.
3. Ocean Heat and Ice Loss
The oceans are warmer than ever, which contributes to rising sea levels. This warming also leads to ocean acidification, threatening marine life. At the same time, ice levels in both the Arctic and Antarctic are alarmingly low.
4. Extreme Weather Events
Many severe weather events, like heatwaves and hurricanes, have been intensified by climate change. For instance, a study showed that certain heatwaves in Central Asia were made more likely due to human-driven climate change.
Australia’s Role
Australia stands out for its carbon footprint—each person emits about three times more carbon dioxide compared to the global average. This has significant implications. The country faced its fourth warmest year on record in 2025. Rising sea temperatures around Australia set new records, leading to longer and harsher heatwaves and bushfire seasons.
According to recent studies, the Earth is heating up at twice the rate compared to decades past. This sharp increase compels us to act swiftly.
What Can We Do?
The challenge ahead is immense but not impossible. Immediate action to reduce emissions is crucial. Some countries are already making progress by shifting toward renewable energy sources. Australia must accelerate its efforts to meet net-zero emissions targets by 2050.
Even if we achieve net zero, the impacts of climate change won’t simply vanish. But by reducing greenhouse gas emissions now, we can help prevent further damage for future generations.
If we work together and make conscious choices today, we can protect our planet for the years to come.
For more in-depth climate data, visit the World Meteorological Organization for the latest reports.
About the author: Andrew King, a climate science expert at The University of Melbourne, focuses on the urgent challenges posed by climate change.
