Climate tipping points might be triggered even if limited to 1.5C
Here’s the intro from this Bloomberg article:
The drought- and flood-stricken summer of 2022 has shown the impact of 1.1° Celsius of global warming — the amount that’s already occurred since pre-industrial times. Now a major scientific reassessment finds that several critical planetary systems are at risk of breaking beyond repair even if nations restrain warming to 1.5°C, the lower threshold stipulated by the Paris Agreement.
At that level of warming, coral reefs may die off, ice sheets in Greenland and the West Antarctic may melt and permafrost may abruptly thaw, according to a new paper in the journal Science. The paper compiles evidence that major changes in the climate system, with massive environmental and societal consequences, are likely to occur at lower temperature changes than previously assumed. It was written by a team of international scientists led by David Armstrong McKay of Stockholm University in Sweden and the University of Exeter in the UK.