Scientists have identified 27 global warming accelerators (feedback loops like warming in the Arctic, leading to melting sea ice, which results in further warming as sea water absorbs rather than reflects solar radiation). Some may not be fully accounted for in climate models which may be underestimating the acceleration in global temperature change. Even comparatively modest warming is expected to heighten the likelihood of the Earth crossing various tipping points, causing big changes in the planet’s climate system and potentially strengthening the amplifying feedbacks. Interactions among feedback loops could cause a permanent shift away from the Earth’s current climate state to one threatening the survival of many humans and other life forms.
today.oregonstate.edu/news/feedback-loops-make-climate-action-even-more-urgent-scientists-say