In 2025, Earth's oceans reached a record-high heat content, absorbing 23 Zetta Joules of energy, which accelerates climate change impacts such as stronger storms, rising sea levels, and more extreme weather events, with uneven warming across regions fueling unpredictable weather patterns.
The world's oceans experienced record-breaking heat for the ninth consecutive year in 2025, driven by rising greenhouse gas emissions, leading to severe weather events, melting ice sheets, and threats to marine life, with no end in sight unless global emissions are drastically reduced.
In 2025, the world's oceans absorbed record amounts of heat, intensifying climate disasters such as hurricanes, floods, and marine heatwaves, and contributing to sea level rise. This ongoing ocean warming, which is likely the hottest in at least 1,000 years, underscores the urgent need to reduce emissions to mitigate future climate impacts.
The Earth's oceans have warmed for the ninth consecutive year in 2025, absorbing vast amounts of heat that contribute to climate change, extreme weather, and threats to marine ecosystems like coral reefs, with the warming penetrating as deep as 2,000 meters and likely to persist for centuries. Immediate action to reduce greenhouse gases could stabilize or reverse this trend.
Iceland recorded its hottest Christmas Eve ever at 19.8°C due to warm tropical air and high pressure systems, highlighting the impacts of global warming, which has led to record heatwaves, melting glaciers, and the appearance of mosquitoes in the country.
Scientists report that 2025 was one of the three hottest years on record, surpassing the critical 1.5°C warming threshold set by the Paris Agreement, largely due to human activities like burning fossil fuels, leading to severe weather events and increased climate risks worldwide.
Scientists report that 2025 was one of the three hottest years on record, with climate change driven by human activities, especially fossil fuel burning, leading to severe weather events and surpassing the 1.5°C warming threshold set by the Paris Agreement, highlighting the urgent need for global action.
The summer of 2025 saw unprecedented U.S. flooding and unusual hurricane patterns largely influenced by a weakened and southward-shifted polar jet stream, driven by climate change, which caused prolonged storms and prevented hurricanes from hitting the mainland.
Human activities and climate change are intensifying floods in Asia, causing widespread destruction, loss of life, and displacement, with scientists linking increased moisture and energy in storms to global warming, while emphasizing the need for better early warning systems and natural solutions to mitigate future disasters.
A UN report reveals that climate-related disasters have displaced 250 million people over the past decade, with floods, storms, droughts, and heatwaves driving conflict and displacement, especially in fragile countries that receive limited climate finance. The situation is expected to worsen, with climate change intensifying human rights crises and threatening the habitability of refugee camps by 2050. The UN calls for urgent climate action and funding at COP30 to protect vulnerable populations.
A decade after the Paris climate agreement, global efforts have made some progress in reducing future warming projections and increasing renewable energy, but overall climate change impacts have accelerated, with temperature rises, extreme weather, and ice melt surpassing expectations, highlighting the urgent need for faster action.
Scientists link the increasing strength and frequency of typhoons like Kalmaegi to rising sea surface temperatures caused by human-induced global warming, warning that back-to-back storms and expanding storm footprints pose escalating risks to Southeast Asia.
A study links Hurricane Melissa, the most powerful storm to hit Jamaica, to climate change, showing that global warming has increased the storm's strength, rainfall, and rapid intensification, highlighting the urgent need for climate action and finance to support vulnerable nations.
A rare EF5 tornado, the first in over a decade in the US, struck North Dakota in June, with winds over 210 mph, causing significant destruction and marking a rare event on the Enhanced Fujita Scale, which may be influenced by evolving damage assessments.
A study links over 200 severe heat waves to human-caused climate change and emissions from major fossil fuel companies, highlighting their significant role in increasing the likelihood and intensity of these events, with implications for climate policy and litigation.