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I'm advocating looking beyond the possibilities offered by a purely adversarial approach. We can't effectively "make war" on plagues, geological events or climate - but we can mitigate the effects. In terms of say the Philippines and other areas being decimated by shifting and intensifying storm patterns - look further than aid. ...What's the point of providing aid when investors are avoiding the region because they can't get adequate insurance coverage, and Filipinos have no hope for jobs or a future - or infinite aid?
reply to post by soficrow
I'm advocating looking beyond the possibilities offered by a purely adversarial approach. We can't effectively "make war" on plagues, geological events or climate - but we can mitigate the effects. In terms of say the Philippines and other areas being decimated by shifting and intensifying storm patterns - look further than aid. ...What's the point of providing aid when investors are avoiding the region because they can't get adequate insurance coverage, and Filipinos have no hope for jobs or a future - or infinite aid?
That's pretty vague, to be honest. Are you wanting insurers to drop their rates? Are you wanting investors to invest? ...What is your goal for the Philippines? What methods would you use to obtain that goal?
AndyMayhew
reply to post by UnifiedSerenity
Ah, the old "everyone else is doing it, so why shouldn't we?" argument
If eveyone in your street dumped their litter in the gutter, would you? Or would you set an example by not doing so and try and duscourgae your neighbours from doing so as well?
If we discovered that, although people die of cancer and lung disease anyway, smoking cigarettes make you more likely to get cancer and lung disease, should we try and discourage people from smoking quite as much? Even if people in China were smoking even more?
Normalizing economic loss from natural disasters: A global analysis
A potential climate change signal is not easily detected from data of economic loss from natural disasters, however. One cannot simply look at inflation-adjusted damages from natural disasters and test for a time trend therein.
While such an analysis would be interesting for other reasons, any trend found may simply be due to the fact that areas affected by natural disasters have become wealthier over time. For example, people often move to disaster-prone areas such as floodplanes and coastal areas because other characteristics of these areas attract them, which provide a higher expected benefit than the expected cost following from damage in the uncertain event of natural disaster.
Even in the absence of migration, existing populations in affected areas are bound to increase over time, while property values are bound to rise. Hence, any increase in natural disaster damage may be entirely due to an increase in what can potentially be destroyed, i.e., an increase in exposed wealth, rather than because of an increase in the frequency and/or intensity (potential destructive power) of natural hazards. Even then, a policy response may be required of course – for example, in the form of discouraging people from migrating to disaster-prone areas and undertaking measures to protect the lives and property of existing people in such areas.
Independently of the method used, we find no significant upward trend in normalized disaster loss. This holds true whether we include all disasters or take out the ones unlikely to be affected by a changing climate. It also holds true if we step away from a global analysis and look at specific regions or step away from pooling all disaster types and look at specific types of disasters instead or combine these two sets of dis-aggregated analysis.
Much caution is required in correctly interpreting these findings. What the results tell us is that, based on historical data, there is no evidence so far that climate change has increased the normalized economic loss from natural disasters. More cannot be inferred from the data. In particular, one cannot infer from our analysis that there have not been more frequent and/or more intensive weather-related natural disasters.
Normalized tornado damage in the United States: 1950– 2011
This article normalizes U.S. tornado damage from 1950 to 2011, using several methods. A normalization provides an estimate of the damage that would occur if past events occurred under a common base year’s societal conditions. We normalize for changes in inflation and wealth at the national level and changes in population, income and housing units at the county level.
Under several methods, there has been a sharp decline in tornado damage. This decline corresponds with a decline in the reported frequency of the most intense (and thus most damaging) tornadoes since 1950. However, quantification of trends in tornado incidence is made difficult due to discontinuities in the reporting of events over time.
The normalized damage results are suggestive that some part of this decline may reflect actual changes in tornado incidence, beyond changes in reporting practices. In historical context, 2011 stands out as one of the most damaging years of the past 61 years and provides an indication that maximum damage levels have the potential to increase should societal change lead to increasing exposure of wealth and property.
With increased National Doppler radar coverage, increasing population, and greater attention to tornado reporting, there has been an increase in the number of tornado reports over the past several decades. This can create a misleading appearance of an increasing trend in tornado frequency.
To better understand the variability and trend in tornado frequency in the United States, the total number of EF-1 and stronger, as well as strong to violent tornadoes (EF-3 to EF-5 category on the Enhanced Fujita scale) can be analyzed.
These tornadoes would have likely been reported even during the decades before Doppler radar use became widespread and practices resulted in increasing tornado reports. The bar charts below indicate there has been little trend in the frequency of the stronger tornadoes over the past 55 years
www.ncdc.noaa.gov
No significant trend in any of the TC characteristics (number, intensity, track types, landfall locations) can be identified. In other words, TC activity in the western North Pacific does not follow the trend in the global increase in atmospheric or sea-surface temperature.
Instead, all such characteristics go through large interannual and interdecadal variations.
Such variations are very much related and apparently caused by similar variations in the planetary-scale atmospheric and oceanographic features that also do not have the same trend as the global increase in air temperature.
www.cityu.edu.hk
Tropical cyclone (TC) activity over the western North Pacific (WNP) exhibits a significant interdecadal variation during 1960–2011, with two distinct active and inactive periods each. This study examines changes in TC activity and atmospheric conditions in the recent inactive period (1998–2011). The overall TC activity shows a significant decrease, which is partly related to the decadal variation of TC genesis frequency in the southeastern part of the WNP and the downward trend of TC genesis frequency in the main development region.
An Inactive Period of Western North Pacific Tropical Cyclone Activity: 1998-2011
...insurers and re-insurers have vested interests in minimizing risk, (and) maximizing their profits
This suggests seasonal storms may be moving 10 degrees to the north while increasing in severity.
The warmer Arctic and changes in the Arctic atmosphere may impact the Polar Vortex
The elevated pressure surfaces above the North Pole persist into early winter, setting up conditions that tend to weaken the strong Polar Vortex winds that normally circle the Arctic in a counterclockwise direction, and may impact large scale wind patterns over the Northern Hemisphere, potentially allowing cold air to move southward.
Sea ice retreat contributes to Arctic cyclone generation
The Arctic is warming faster than the rest of the globe, due to the decrease in Arctic sea ice. With less sea ice cover, the ocean absorbes more heat from the sun during summer, increasing the temperature contrast between the warm ice-free ocean and cold ice surfaces in autumn. The large temperature contrast contributes to the generation of Arctic cyclones. In the late September 2010, Japanese Research Vessel Mirai observed the explosive generation of an Arctic cyclone, shown in Figure 6.4
Scientists analyzing observations from the Mirai concluded that this is an invaluable example of the fact that sea ice retreat contributees to polar amplification of surface air temperature increase and that cyclone generation is important in the transfer of the excess heat from the ocean into the atmosphere.4
You say denying weather anomalies in order to deny governments taxation privileges is "stupid"
To deny that it's happening or that warming can cause colder winters in order to deny that the warming is because of burning fossil fuels, is just stupid beyond measure at this point.
Revisiting the evidence linking Arctic amplification to extreme weather in midlatitudes
Previous studies have suggested that Arctic amplification has caused planetary-scale waves to elongate meridionally and slow down, resulting in more frequent blocking patterns and extreme weather. Here trends in the meridional extent of atmospheric waves over North America and the North Atlantic are investigated in three reanalyses, and it is demonstrated that previously reported positive trends are likely an artifact of the methodology.
No significant decrease in planetary-scale wave phase speeds are found except in October-November-December, but this trend is sensitive to the analysis parameters. Moreover, the frequency of blocking occurrence exhibits no significant increase in any season in any of the three reanalyses, further supporting the lack of trends in wave speed and meridional extent.
This work highlights that observed trends in midlatitude weather patterns are complex and likely not simply understood in terms of Arctic amplification alone
We find that the metrics disagree on whether a significant trend in wave extent has been observed, and we explain this disagreement as arising due to the methodology of defining the wave on either daily or seasonal time scales. In addition, we demonstrate that when both metrics focus on a narrow range of isopleths to track the ridges and troughs of a passing wave they incorrectly interpret a shift of the geopotential height field as a change in wave extent. When this shift is accounted for, no significant trend is found.
We further investigate whether large-scale waves have slowed down in the recent decades and find no significant trends except in the Autumn months, although the significance of this trend is sensitive to the diagnostic field and the specific averaging domain.
Furthermore, no significant increase in blocking occurrence is detected in any season. We conclude that the mechanism put forth by previous studies, that amplified polar warming has led to the increased occurrence of slow-moving weather patterns and blocking episodes, appears unsupported by the observations.
Kali74
As long as there is ice and cold air in the arctic in the winter, the northern hemisphere will continue to be cold in winter also, with periods of extremes because of what I said before.
AFAIK the only thing needed to create a high pressure system is that the air be colder than the surface it's over, whether that's water or land.
Source: nsidc.org...
Ice extent in the Arctic was below average during November. There was substantially less ice than average in the northern Barents Sea, likely due to an influx of warm ocean waters and the persistence of a strong positive Arctic Oscillation (AO).
What I infer has nothing to do with taxes.
tothetenthpower
reply to post by ketsuko
Right, but there is a certain ammount of it that certainly is man made. China's factories don't actually help the atmosphere right?
So, there's work we need to do. The carbon tax thing is just a scheme.
~Tenth
As I said, "Whatever." Meaning, "Hypothetically speaking."
Amazing, isn't it - even with the internet and our new-found ability to inform ourselves beyond what the MSM wants us to see, people are even more insular, narrow-minded, blinkered, bigoted and uninformed. Go figure.
talklikeapirat
reply to post by soficrow
As I said, "Whatever." Meaning, "Hypothetically speaking."
If it's only (your) hypothesis then how do you reconcile your own ignorance with making statements like this.
(Insurance companies) are stopping coverage in some geographic areas, raising premiums in others and lowering premiums in still other areas. This suggests seasonal storms may be moving 10 degrees to the north while increasing in severity. Whatever. Things are changing and the insurance industry is responding. Because they have to respond, accurately, or go bust.
The U.S. has gone seven (eight including the last season) consecutive years without a landfalling major hurricane, the longest stretch since the 1860s, a meteorologist with Aon Benfield’s catastrophe modeler says.
In fact, Bowen said 2012 marks the fourth consecutive year of below-average tropical-cyclone landfall on a global basis.
However, despite the slowdown in tropical-cyclone landfalls, global catastrophe losses in 2012 were 36 percent higher than the 10-year average, an Impact Forecasting report notes.
Bowen observed in an interview with PC360 that the level of loss does not necessarily correlate with the number of events that occur in a given year. Insurance penetration and economic development contribute substantially to the final figures.
source