A major new study involving more than 70 scientists from nearly 30 countries warns that past emissions have already committed the planet to significant climate impacts, but stresses that the severity of those impacts still hinges on decisions made now. The report, titled 10 New Insights in Climate Science, aims to translate complex research into concise, actionable findings for policymakers facing high-stakes choices.
Published on 6 October, the report highlights that overshooting the 1.5°C target set by the Paris Agreement carries “rapidly escalating risks of irreversible impacts” for oceans, glaciers, and permafrost. It also notes that the economic and social costs of such an overshoot are higher than previously estimated.
Ocean heat and sea-level rise
The ocean continues to absorb record amounts of heat, locking in further warming for decades. In August, global sea surface temperatures reached 21.1°C, the highest ever recorded. The report warns that deep cuts to greenhouse gas emissions are “urgently needed” to prevent long-term heat accumulation.
“The ocean has been our planet's shock absorber,” says Wendy Broadgate, Global Hub Director at Future Earth and a member of the report's editorial board. “Because heat takes decades to penetrate ocean depths, today's emissions effectively lock in further warming and sea level rise. Deep, rapid emissions cuts are the only way to limit these risks.”
Melting glaciers and ice sheets are driving sea-level rise, putting more people at risk of severe flooding. While some rise is already irreversible, the report emphasizes that its magnitude depends on how quickly the world acts.
Freshwater scarcity and food systems
Continental drying is accelerating, widening water gaps across Europe and beyond. The UN projects that by 2030, one in two people will face severe water shortages. The report urges governments to adopt integrated water resource management, including nature-based solutions like restoring wetlands and forests to retain freshwater.
Food systems remain a major driver of climate change, contributing one-third of global greenhouse gas emissions. In the EU, animal-sourced foods account for 81–86% of emissions from food production, despite providing only 32% of calories and 64% of protein. The report calls for a careful and fair transition to more plant-rich diets.
Social cost of carbon and accountability
Experts now estimate that the social cost of carbon is up to four times higher than previously thought, using more realistic climate models. This strengthens the case for compensation claims, as science can now link specific emitters to warming and even to particular losses.
Johan Rockström, director of the Potsdam Institute for Climate Impact Research and co-chair of The Earth League, underscores the urgency: “1.5°C is a limit that we cross at our own risk. Beyond it, the risks of cascading and potentially irreversible climate impacts increase, with every additional tenth of a degree making them more severe.”
The report's authors stress that while the window for action is narrowing, it remains open. Policies that cut emissions deeply and rapidly can still avert the worst outcomes. For Europe, this means accelerating the green transition, investing in climate resilience, and holding major polluters accountable.
As the continent faces rising storm risks and tourism pressures, the findings resonate beyond science. Europe's storm risk is already increasing, and climate change is tourism's biggest threat, according to industry leaders. The report offers a clear roadmap for action, but time is running out.
