I'm currently exploring research challenges related to climate change modeling and mitigation strategies. In this context, I'm interested in understanding what researchers and experts consider the most technically difficult question or problem currently being addressed by the IPCC (GIEC – Groupe d’experts intergouvernemental sur l’évolution du climat).

Particularly, I'm curious about:

• Challenges in modeling climate tipping points.
• Integrating socio-economic pathways (SSPs) with physical climate models.
• Predicting regional climate impacts with high confidence.
• Dealing with uncertainties in climate sensitivity and feedback loops.

I would appreciate insights from climate scientists, Earth system modelers, or researchers working on IPCC reports. If there are specific case studies, frameworks, or papers addressing these challenges, please feel free to share.

Looking forward to a fruitful discussion.