Climate Reporting in Physics World

PhysicsWorld cover, Volume 20, no. 2, February 2007 The February 2007 issue of PhysicsWorld contains several articles relevant to climate research, with a main feature article on climate modelling written by Adam Scaife, Chris Folland, and John Mitchell, and a profile on Richard Lindzen as well as an article on geoengineering in the ‘News & Analyses’ section. The magazine also contains an article (‘Living in the greenhouse’) under ‘Lateral Thoughts’ that brings up a bunch of tentative analogies to a wide range of topics completely unrelated to the greenhouse effect in a technical sense, and an editorial comment ‘Hot topic‘, arguing that it would be wrong of PhysicsWorld to ignore those outside the mainstream. To be more precise, the editorial comment devotes a few lines justifying the profile on Lindzen and the report on geoengineering, with a reference to a Feynman quote: “There is no harm in doubt and scepticism, for it is through these that new discoveries are made”. Wise words! Nevertheless, I cannot resist making some reflections.

One thought that immediately struck me was: has PhysicsWorld tried to make a ‘balanced report‘, or does the issue of doubt and scepticism by itself merit the profile article? Is the scepticism or doubt really genuine (doubt is the product)? To be fair, the article does bring up objections against some of Lindzen’s arguments (citing Gavin). However, I’d like to see a more consistent and critical article, as Lindzen’s arguments – at least the way they are echoed in PhysicsWorld – are in my opinion inconsistent.

Here is one example: Take Lindzen’s controversial claim that the good comparison between modelled and historical temperature evolution is an exercise in “curve fitting”. Written between the lines is the assumption that the climate models are driven with forcings based on historical GHG emissions. Later in the article Lindzen argues that the climate models used by the IPCC are far too sensitive to changes in the concentrations of atmospheric CO2. To me, these two statements say opposite things – and are thus in violation with each other. Because, either the models give a good description of the historic evolution or they don’t, given past GHGs, aerosol emissions and natural forcings (surely, Lindzen must have known about these simulations).

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