By some estimates, 30% of all the CO₂ released by humans in the last two centuries has been absorbed by the world's oceans. As ocean temperature increases, carbon dioxide becomes less soluble (dissolvable) in water. As a result, more CO₂ will stay in the atmosphere where it acts as a greenhouse gas to trap heat and warm the oceans. This is an example of a _______________.

Question

Quizplus · Accepted Answer

This is an example of a positive feedback cycle because the increase in ocean temperature caused by the warming effect of greenhouse gases leads to less CO₂ dissolved in the water, allowing more CO₂ to stay in the atmosphere and further contribute to warming. This creates a self-reinforcing cycle that amplifies the initial warming.

By Some Estimates, 30% of All the CO₂ Released by Humans