The model we have constructed in this chapter neglects feedback effects that might accelerate or brake the warming. Scientists now predict that the Arctic Ocean will be ice-free in the summer by as early as 2020 (due to increased temperatures in the Arctic). Less ice will mean that the Arctic will reflect less visible light back into space. Will this accelerate or brake the warming compared to the predictions of the model in the text?
A) Accelerate
B) Brake
C) No change

Question

Quizplus · Accepted Answer

This will accelerate the warming because less ice means less visible light is reflected back into space, leading to more absorption of heat by the Earth's surface, enhancing the warming effect.

The Model We Have Constructed in This Chapter Neglects Feedback