Which of the following positive feedback effects is NOT a result of Arctic thawing and glacial melting?
A)Melting sea ice leads to less reflectivity.
B)Melting permafrost leads to released methane gas.
C)Melting of the sea-floor results in release of methane hydrate.
D)Melting permafrost leads to increased photosynthesis.
E)Melting glaciers leads to exposed darker rock.

Question

Quizplus · Accepted Answer

Melting permafrost actually leads to the release of greenhouse gases like carbon dioxide and methane, rather than increasing photosynthesis. Increased photosynthesis would be a negative feedback effect, as it could help remove CO2 from the atmosphere, contrary to the positive feedback effects of Arctic thawing and glacial melting that exacerbate global warming.

Which of the Following Positive Feedback Effects Is NOT a Result