Global environmental change
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
Emissions gap report 2025: off target
An analysis of available new climate pledges under the Paris Agreement finds that the predicted global temperature rise over the course of this century has slightly fallen, but not by enough to avoid a serious escalation of climate risks and damages. It finds this overshoot must be limited through faster and bigger reductions in greenhouse...
Report
State of the global climate 2024
The report provides a summary on the state of the climate indicators in 2024 including sections on extreme events and impacts. The report underlines the massive economic and social upheavals from extreme weather and the long-term impacts of record ocean heat and sea-level rise. 2024 is the warmest year in the 175-year observational record.
Report
Planetary health check
This report monitors Earth's stability, resilience, and life-support functions, which is referred to as 'planetary health'. It reveals that six out of nine 'planetary boundaries' have breached the safe levels, with all six showing trends of increasing pressure, suggesting further boundary transgression in the near future.
Briefing paper
Climate security and misinformation: a baseline
This paper provides a baseline on the intersection of climate security risks and mis- and disinformation challenges. Beyond this baseline framework, important questions for future inquiry exist about specific climate misinformation risks and how to ensure integrated and effective policy responses.