Statement analysis:
(A) is correct. The natural greenhouse effect maintains Earth's average temperature around 15°C, enabling habitability. Without this effect, the average temperature would be approximately -18°C.
(B) is correct. Natural processes, such as respiration, volcanic activity, and decomposition, release greenhouse gases like carbon dioxide and methane.
(C) is correct. This accurately describes the greenhouse effect's role.
(D) is correct. The prevailing scientific view attributes current global warming primarily to increased greenhouse gas concentrations resulting from human activities.
All statements presented are factually accurate. The question appears to contain an error, as it requests an incorrect statement, which is not present.