'What is the reason for the lack of warming observed at the surface of the Earth since about 1997? Many causes have been proposed, and with increasing frequency, but most only represent partial explanations.' 'The ocean heat content is not behaving as some expected. (The past 10 years the oceans) shows no warming in upper most layers. If the heat is there, it must be deeper, far harder to detect. And possibly locked away for thousands of years.'