Ocean warming
Alternative labels
Marine warming
Report
State of the global climate 2025
This annual report provides information on the state of the climate system by updating key observed climate indicators and presenting selected high-impact weather and climate events. For the first time, the report includes the Earth’s energy imbalance as a key climate indicator. It confirms that the past 11 years are the warmest on record.
Report
Global tipping points report 2025
Global warming will soon exceed 1.5°C. This report details the escalating risks presented by earth system destabilisation and emphasises the necessity of triggering positive tipping points to achieve urgent climate action. The report is not only a warning but a guide: it maps where dangers converge, but also where opportunities to tip systems positively are...
Report
Understanding climate threats to the Great Barrier Reef
This report examines how ocean warming, acidification and more frequent extreme weather events are affecting the Great Barrier Reef’s health and the risks to its unique ecosystems in an increasingly warming climate. The report argues urgent action worldwide to reduce greenhouse gas emissions and limit the increase of global warming is essential to keep open...
Report
The state of the climate in the South-West Pacific 2024 report
This report warns that unprecedented ocean warming, sea level rise, and extreme weather are endangering lives, ecosystems, and economies across the South-West Pacific. It calls for urgent investment in adaptation, early warnings and climate-resilient development.
Report
WMO global annual to decadal climate update 2025–2029
The report provides a synthesis of the global annual to decadal climate predictions. Global temperatures are expected to remain at or near record levels in the next five years, increasing climate risks on societies, economies and sustainable development. Every additional fraction of a degree of warming drives more harmful and extreme weather events and environmental...