A new study published in Geophysical Research Letters has revealed that the pace of global warming has nearly doubled since 2015, raising significant concerns about the planet's future. The research indicates that if this trend continues, the world could breach the Paris Agreement's goal of limiting warming to 1.5°C above pre-industrial temperatures before 2030.
Key Takeaways
A new study published in Geophysical Research Letters has found that the rate of global warming has nearly doubled since 2015, raising concerns about breaching the Paris Agreement's 1.5°C limit before 2030.
- Global warming rate increased from 0.2°C per decade to 0.35°C per decade since 2015
- All 10 hottest years on record have occurred since 2015, with 2024 being the hottest year ever recorded.
- The study adjusted data to account for natural fluctuations like El Niño and volcanic eruptions, revealing a clear acceleration of global warming with over 98% statistical certainty
- Researchers warn that if current trends continue, the long-term exceedance of the Paris Agreement's 1.5°C limit could occur before 2030.
- The study emphasizes the importance of reducing global CO₂ emissions to zero to stop further global warming.
Between 1970 and 2015, global mean surface temperature rose at an average rate of 0.2°C per decade. However, over the past ten years, this rate has increased to approximately 0.35°C per decade. This acceleration is evident as all ten of the hottest years on record have occurred since 2015, with 2024 being the hottest year ever recorded.
The study's authors adjusted their data to account for short-term natural fluctuations caused by factors like El Niño, volcanic eruptions, and solar cycles. By filtering out these influences, they isolated the role of climate change in driving temperature increases. The results showed a clear acceleration of global warming since 2015 with over 98% statistical certainty.
Stefan Rahmstorf, a researcher at the Potsdam Institute for Climate Impact Research and lead author of the study, emphasized that if the current rate of warming continues, it would lead to a long-term exceedance of the Paris Agreement's 1.5°C limit before 2030. The study also highlighted that while global warming is likely irreversible on human timescales, reducing global CO₂ emissions from fossil fuels to zero could stop further warming.
The impacts of this accelerated warming are already being felt worldwide, with more frequent and intense natural disasters such as hurricanes, wildfires, and floods. Additionally, coastal sea levels have risen higher than previously estimated, putting hundreds of millions more people at risk from rising sea levels.
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