THERE are only ever a small number of scientists who can explain a phenomenon from first principles and these experts will often speak in jargon that is unintelligible[1]. But every so often one comes across a real expert who appears to not only have a deep understanding of a subject area, but can also write with clarity on that subject.
The oceanographer the late Robert E. Stevenson [2] wrote a short article for Science and Technology Magazine in 2000 disputing the popular consensus on how the oceans warm [3]. In the following extract from ‘Yes, the Ocean has Warmed; No, It’s Not Global Warming’, Dr Stevenson claims that:
1. Sunlight directly heats the ocean to a certain depth, up to 100 metres;
2. The ocean heat balance is maintained by heat loss to the atmosphere, not to the deep ocean; and
3. Infrared radiation from greenhouse gases heats only the top few millimetres of the ocean and as a consequence is soon dissipated by evaporation.
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Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation.