A guest post by Nic Lewis Introduction and summary Recently a new model-based paper on climate sensitivity was published by Kate Marvel, Gavin Schmidt (the head of NASA GISS) and others, titled ‘Internal variability and disequilibrium confound estimates of climate sensitivity from observations’.[1] It appears to me that the novel part of its analysis is […]
Introduction I thank Patrick Brown for his detailed response (also here) to statistical issues that I raised in my critique “Brown and Caldeira: A closer look shows global warming will not be greater than we thought” of his and Ken Caldeira’s recent paper (BC17).[1] The provision of more detailed information than was given in BC17, and […]
A guest post by Nic Lewis Introduction Last week a paper predicting greater than expected global warming, by scientists Patrick Brown and Ken Caldeira, was published by Nature.[1] The paper (henceforth referred to as BC17) says in its abstract: “Across-model relationships between currently observable attributes of the climate system and the simulated magnitude of future […]
Since the last hurricane related post, some news has occurred on the hurricanes front. Nature Geosciences article by Knutson et al. (2010) discussing the linkages between tropical cyclones and climate change / global warming — as an update to the IPCC AR4 statements Whether the characteristics of tropical cyclones have changed or will change in […]
Update: Feb 14 2010: Dana Milbank of the Washington Post provides his perspective: (emphasis mine) As a scientific proposition, claiming that heavy snow in the mid-Atlantic debunks global warming theory is about as valid as claiming that the existence of John Edwards debunks the theory of evolution. In fact, warming theory suggests that you’d see […]
Can anyone on the Team actually hit a target? A couple of days ago, I reported that Santer’s own method yielded failed t-tests on UAH when data up to 2008 (or even 2007) was used. I also reported that their SI (carried out in 2008) included a sensitivity test on their H1 hypothesis up to […]
Climate Audit 