SUMMARY - Tipping Points, Feedback Loops, and Nonlinear Climate Shifts
Climate change isn't always gradual. Earth's climate system contains thresholds beyond which changes become self-reinforcing, potentially triggering rapid shifts that are difficult or impossible to reverse. These tipping pointsâfrom ice sheet collapse to permafrost methane release to Amazon diebackârepresent climate change's most dangerous dimensions. Understanding what we know about tipping points, what remains uncertain, and what they imply for action is essential for grasping the full stakes of climate decisions.