positive feedback loop
a situation when the changes to a system build on themselves, causing the system to keep changing in the same direction
an event that changes the way the parts of a system interact, causing changes to the state of a system
the state of a system in which small changes occur, but overall the system is steady and constant
an influence on a system that pushes it out of a state of equilibrium, into a new state of equilibrium
the global loss of glacial ice as a result of climate change, causing a rise in global sea level
'dendro' = tree, 'chron' = time; matching the climatic "fingerprint" recorded in tree rings to a period in history
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