Lindzen: Understanding The IPCC AR5 Climate Assessment

Climatism comment : Important read from Richard Lindzen via WUWT :

  • “Carbon restriction policies, to have any effect on climate, would require that the most extreme projections of dangerous climate actually be correct, and would require massive reductions in the use of energy to be universally adopted. There is little question that such reductions would have negative impacts on income, development, the environment, and food availability and cost – especially for the poor. This would clearly be immoral.”
  • “Needless to add, support of global warming alarm hardly constitutes intelligent respect for science.”

Watts Up With That?

Guest essay by Dr. Richard Lindzen

Each IPCC report seems to be required to conclude that the case for an international agreement to curb carbon dioxide has grown stronger. That is to say the IPCC report (and especially the press release accompanying the summary) is a political document, and as George Orwell noted, political language “is designed to make lies sound truthful and murder respectable, and to give an appearance of solidity to pure wind.”

With respect to climate, we have had 17 years without warming; all models show greater tropical warming than has been observed since 1978; and arctic sea ice is suddenly showing surprising growth. And yet, as the discrepancies between models and observations increase, the IPCC insists that its confidence in the model predictions is greater than ever.

Referring to the 17 year ‘pause,’ the IPCC allows for two possibilities: that the sensitivity of the climate to…

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