Lessons learnt from paleoscience on a possible 1.5-2°C warmer world in the future
Lieu de l'événement
The goal of the workshop is to summarize the current status of knowledge on the response of the Earth system to a 1.5-2°C warming. It will also lay out future scientific actions to add to this knowledge in order to come up with authoritative assessments of future long-term changes in the Earth system as expected from past examples of warmer climate conditions.
It is now entering the public consciousness that future warming triggered by near-term anthropogenic greenhouse gas emissions will last for many millennia, causing impacts large enough to warrant discussion about whether we have entered a new geologic epoch, the Anthropocene. It is not possible to understand the scale of these long-term impacts based on the short history of human scientific observations. Climatic and environmental information stored in natural climate archives, together with climate model results, allow us to draw a comprehensive picture of how different components of the Earth system with long response times will change in a warmer world.
This joint workshop is part of the PAGES Integrative Activity "Warmer Worlds" and will assess the knowledge of such long-term changes and the existence of planetary boundaries associated with a globally (and potentially rapidly) warming planet. The goal is to draw a comprehensive picture of climate and environmental conditions associated with past global warmth above preindustrial conditions.