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Why was 2025 so hot compared to previous years?
2025's record heat is mainly due to Earth's increasing energy imbalance, with more heat being trapped in the atmosphere and oceans. Human activities like burning fossil fuels have significantly raised greenhouse gases, causing global temperatures to rise to about 1.43°C above pre-industrial levels. This buildup of heat has led to the hottest years on record in recent decades.
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What does Earth's energy imbalance mean for climate change?
Earth's energy imbalance occurs when more energy from the sun is retained than escapes back into space. This excess energy warms the planet, leading to higher temperatures, melting ice, and rising sea levels. The 2025 report shows this imbalance hit a 65-year high, accelerating climate change effects worldwide.
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How are oceans contributing to global warming?
Oceans absorb over 90% of the excess heat from global warming, which increases ocean temperatures and causes sea levels to rise. Warmer oceans also contribute to more extreme weather events and accelerate ice melt from glaciers and ice sheets, further intensifying climate impacts.
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What are the long-term impacts of this record heat?
The record heat of 2025 signals ongoing climate disruptions, including more intense storms, droughts, and flooding. It also threatens ecosystems, agriculture, and human health. If greenhouse gas emissions are not reduced, these impacts will worsen and persist for centuries.
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What can we do to prevent worse climate impacts?
To limit future climate damage, urgent action is needed to cut greenhouse gas emissions, transition to renewable energy, and protect natural carbon sinks like forests and oceans. Individual efforts, policy changes, and global cooperation are essential to slow down warming and secure a sustainable future.