Positive Feedback (Coastal)
Feedback mechanisms in coastal systems where an initial change triggers processes that amplify the change, accelerating coastal evolution.
Real World
At Holderness, England's fastest-eroding coastline, cliff collapse exposes fresh boulder clay to wave attack, removing protective beach material and accelerating retreat rates to over 2 metres per year in a self-reinforcing cycle.
Exam Focus
Clearly state the direction of amplification in positive feedback answers — examiners expect 'change A causes more of change A' logic explicitly stated.
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