00:00From polar ice sheets to tropical forests, our Earth is changing fast.
00:09Understanding these changes has never been more urgent.
00:13ESM 2025 is an EU research project that aims to better understand the Earth system response to human activity
00:21and how we can use this knowledge to support effective climate action.
00:26We all built the foundation for the next generation of Earth system models, more realistic, more policy relevant.
00:32But what really made ESM 2025 stand out was collaboration.
00:39We work with several European modeling teams to break the silos between Earth system and integrated assessment modeling communities.
00:48This work, never done before in a new project, aims to improve and accelerate the pipeline of climate simulation.
00:55in support of the IPCC assessments and of the Paris Agreement.
01:01Beyond science, we engage with educators, policymakers and the public.
01:05Outreach wasn't an add-on, it was part of how we worked.
01:10We helped to shift the research mindset from concentration-driven to emission-driven simulation.
01:16All ESM 2025 Earth system models are now capable of running simulation in CO2 emission framework.
01:24Within the project, we have expanded this capability for mesene and nitrogen cycle, which is a major innovation in Earth system modeling.
01:33Now, let's have a look where ESM 2025 made its major scientific contribution.
01:40In the project, we assess how land-based mitigation strategies such as afforestation, bioenergy crops can affect the carbon storage, the climate and the food system.
01:55All models show that the carbon sinks from forests and crops can be less reliable than previously assumed.
02:02Methane is a major climate risk.
02:07For the first time, we model its sources and sinks interactively, including wetlands, lakes, fires and thawing permafrost.
02:15This helps clarify future risks and assess the real impact of global methane pledges.
02:21We introduced interactive ice sheet modeling in Earth system models, improving the long-term projection of sea level rise.
02:30Our results show that the most extreme scenarios can be avoided if temperatures peak early and decline fast.
02:39Alongside these priorities, we advanced how models simulate nitrogen cycling and its role in air quality, deoxygenation and warming.
02:49Land-to-ocean nutrient and carbon flows, vertical mixing and carbon uptake in the ocean, and wildfire dynamics and their feedbacks on the Earth system.
03:02Taken together, these developments help clarify what's needed to meet the Paris goals and the risks of falling short.
03:09ESM 2025 also supports consistent and science-based mitigation strategies by integrating climate insight from the Earth system model into the integrated assessment model.
03:26We also developed open tools and resources, making our science accessible to researchers, teachers and the wider public.
03:33Because advancing science also means sharing it.
03:38Our system science provides the knowledge we need for climate action.
03:42And collaboration plays a vital role in turning this knowledge into impact.
03:48And ESM 2025 showed what's possible when we put that into practice, connecting disciplines, data and people across communities and generations.
04:01And last but not least, we would also like to thank all European students and teachers who contributed to this video project.
04:08They have worked hard to learn about our scientific subjects and share them with their communities.
04:14Explore our scientific results, policy insights and outreach materials at ESM 2025.eu.
04:29Explore our scientific results, policy insights and outreach materials at ESM 2025.eu.
04:34Explore our scientific results at ESM 2025.eu.
