A story on climate change by Jonathan Leake that is reprinted in the Australian is pretty well guaranteed to misrepresent the science. And it does — you only have to compare the headline for Leake’s story “Cyclone climate link rejected” with Nature Geosciences headline “Tropical cyclone projection: Fewer but stronger” for the new paper and with what the IPCC report says:
Based on a range of models, it is likely that future tropical cyclones (typhoons and hurricanes) will become more intense, with larger peak wind speeds and more heavy precipitation associated with ongoing increases of tropical sea-surface temperatures. There is less confidence in projections of a global decrease in numbers of tropical cyclones.
Of course “New paper confirms IPCC report” isn’t the story that Leake wants to tell, so what does he do? Makes stuff up, as usual. Leake claims:
Research by hurricane scientists may force the UN’s climate panel to reconsider its claims that greenhouse gas emissions have caused an increase in the number of tropical storms.
The AR4 WG1 SPM says
There is no clear trend in the annual numbers of tropical cyclones. {3.8}
Leake continues:
The benchmark report from the Intergovernmental Panel on Climate Change (IPCC) said that a worldwide increase in hurricane-force storms since 1970 was probably linked to global warming.
Actually the AR4 WG1 SPM actually says that it is “more likely than not” (more than 50% probability) that intense tropical cyclone activity increased in the North Atlantic. Notice that Leake exaggerated what the IPCC stated in three different ways. The new study conlcudes:
Thus, considering available observational studies, and after accounting for potential errors arising from past changes in observing capabilities, it remains uncertain whether past changes in tropical cyclone frequency have exceeded the variability expected through natural causes.
There doesn’t seem to be much difference here.
Finally, in order to shoehorn the new paper into his “IPCC wrong” narrative, Leake completely omits this (from the abstract of the new paper):
Balanced against this, higher resolution modelling studies typically project substantial increases in the frequency of the most intense cyclones, and increases of the order of 20% in the precipitation rate within 100 km of the storm centre.