Question

Earth’s climate changes tend to self-amplify. For example, the Earth is currently warming. As temperatures rise, the ice caps and sea ice melt, reflecting less solar radiation. As a result, Earth’s surface absorbs more of the Sun’s heat and grows warmer, melting more ice. This warming pattern is an example of what type of feedback loop?

neutral feedback loop

positive feedback loop

negative feedback loop

no feedback loop

Answer 1

Positive feedback loop — warming melts ice, which reduces albedo so more solar energy is absorbed, causing further warming.