dannybuntu on Nostr: #whatif Greenland actually becomes green? There is no single, precise “°C rise” ...

#whatif Greenland actually becomes green?

There is no single, precise “°C rise” that makes Greenland 100% ice-free (i.e., literally “green” everywhere), because it depends on how long the warming is sustained, regional Arctic amplification, precipitation changes, and ice-sheet dynamics—but research indicates that sustained global warming on the order of ~1–3°C above pre-industrial can commit the Greenland Ice Sheet to eventual near-total loss, with a commonly cited best estimate around ~1.5–1.6°C for crossing that long-term threshold.

Separately, paleoclimate evidence shows that parts of Greenland have melted substantially under conditions roughly several degrees warmer than recent “modern” baselines (e.g., early Holocene regional warmth), reinforcing that multi-degree sustained warming greatly increases the probability of Greenland becoming largely ice-free over time.