ImTheCaptain
I disagree with you
alarmingly satirical
Two snowflakes?
What link? AR5 states, there is no established link. Page 127 of the current draft:-Misrepresenting the link between warming and hurricanes.[9]"
They get into the details of why they say this in Chapter 10 (10-51)Confidence remains low for long-term (centennial) changes in tropical cyclone activity, after accounting for past changes in observing capabilities. However since the 1970s, it is virtually certain that the frequency and intensity of storms in the North Atlantic has increased although the reasons for this increase are debated (see TFE.9). There is low confidence of large-scale trends in storminess over the last century and there is still insufficient evidence to determine whether robust trends exist in small-scale severe weather events such as hail or thunder storms.
Love this part. It starts with "may affect" and then say it's been "attributed to CO2", which means someone thinks they may have found a link but it sounds more definitive. Then in the next sentence they start with all the confounding findings that go the other way, some of which are far more definitive (aerosols). More statements from AR5.Studies that directly attribute tropical cyclone activity changes to anthropogenic greenhouse gas emission are lacking. Among many factors that may affect tropical cyclone activity, tropical SSTs have increased and this increase has been attributed at least in part to anthropogenic forcing (Gillett et al., 2008a). However, there are diverse views on the connection between tropical cyclone activity and SST (see Section 14.6.1 for details)
As with most aspects of this field, as the research moves forward, the assumed links vaporize.Globally, there is low confidence in any long term increases in tropical cyclone activity (Section 2.6.3) and we assess that there is low confidence in attributing global changes to any particular cause. In the North Atlantic region there is medium confidence that a reduction in aerosol forcing over the North Atlantic has contributed at least in part to the observed increase in tropical cyclone activity since the 1970s. There remains substantial disagreement on the relative importance of internal variability, greenhouse gas forcing, and aerosols for this observed trend. It remains uncertain whether past changes in tropical cyclone activity are outside the range of natural internal variability.
In the earlier report they called it likely or in their "best estimate" >66% probability (their definition of "likely).Based on a range of [their climate] 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.
They completely duck the correlation. They call such solar proxies (isotopic data) "too short" which is BS. It's the longest one we have and these data are used to go back 1000s of years. They at least admit we have a very low "level of scientific understanding" of solar forcing That's what happens when you ignore solid data.Other terrestrially based indicators of solar activity recorded by cosmogenic isotopes in tree-rings and ice-cores also show longer term modulation. However, direct solar proxies other than the sunspot number cover too short a period to reliably detect such a trend. Thus, it is not clear which proxy, if any, can be satisfactorily used to indicate past values of TSI.
The estimate for solar radiative forcing since 1750 of 0.3 Wm−2, shown in Figure 6.6, is based on the values in Figure 6.5 (taking the 11-year cycle minimum values in 1744 and 1996). Clearly the starting date of 1750 (chosen for the date of the pre- industrial atmosphere in Figure 6.6) is crucial here: a choice of 1700 would give values about twice as large; a choice of 1776 would give smaller values (particularly using the Hoyt and Schatten series). The range of 0.1 to 0.5 Wm−2 given in Figure 6.6 is based on the variability of the series, the differences between the reconstructions and uncertainties concerning stratospheric adjustment (see Section 6.11.2.1). However, because of the large uncertainty in the absolute value of TSI and the reconstruction methods our assessment of the “level of scientific understanding” is “very low”.
Now all of the sudden, they are conceding that solar activity may have driven substantial warming in the 20th century prior to 1970, and not only that:The solar contribution to the record of global surface temperature change is dominated by the 11-year solar cycle, which can explain global temperature fluctuations up to approximately 0.1°C between minima and maxima (FAQ 5.1, Figure 1b). A long-term increasing trend in solar activity in the early 20th century may have augmented the warming recorded during this interval, together with internal variability, greenhouse gas increases and a hiatus in volcanism. However, it cannot explain the observed increase since the late 1970s, and there was even a slight decreasing trend of TSI from 1986 to 2008 (Chapters 8, 10).
Prior to 1870, when anthropogenic emissions of greenhouse gases and aerosols were smaller, changes in solar and volcanic activity and internal variability played a more important role, although the specific contributions of these individual factors to global surface temperatures are less certain. Solar minima lasting several decades have often been associated with cold conditions. However, these periods are often also affected by volcanic eruptions, making it difficult to quantify the solar contribution.
They are suddenly extolling the virtues of looking at the isotopic data. They have to. The changes since 2001 can't be explained by greenhouse gases and scientists are catching on to the isotopic data and how well it correlates with temp changes.Second, information about the various magnetic features at the solar surface decreases back in time and must be deduced from proxies such as sunspot counts for the last 400 years and cosmogenic radionuclides (10Be and 14C) for the past Millennium (Muscheler et al., 2007; Delaygue and Bard, 2011) and the Holocene (Table 5.1) (Steinhilber et al., 2009; Vieira et al., 2011). 10Be and 14C records not only reflect solar activity, but also the geomagnetic field intensity and effects of their respective geochemical cycles and transport pathways (Pedro et al., 2011; Steinhilber et al., 2012).
He is just putting placeholder posts on here, so we know he is still alive, while he painstakingly prepares all the sandwiches he is going to serve us idiotic sheep. Constructing that many sandwiches is just a Herculean effort when you get down to thinking about it. He has literally millions (probably closer to billions) of sandwiches to construct just to shove one in the face of every moron that thinks humans are involved in climate change. Hope everybody is getting prepared for Super Storm Sammich.
Mann et al. (1998) and Jones et al. (1998) support the idea that the 15th to 19th centuries were the coldest of the millennium over the Northern Hemisphere overall. However, viewed hemispherically, the “Little Ice Age” can only be considered as a modest cooling of the Northern Hemisphere during this period of less than 1oC relative to late 20th century levels (Bradley and Jones, 1993; Jones et al., 1998; Mann et al., 1998; 1999; Crowley and Lowery, 2000)
As with the “Little Ice Age”, the posited “Medieval Warm Period” appears to have been less distinct, more moderate in amplitude, and somewhat different in timing at the hemispheric scale than is typically inferred for the conventionally-defined European epoch. The Northern Hemisphere mean temperature estimates of Jones et al. (1998), Mann et al. (1999), and Crowley and Lowery (2000) show temperatures from the 11th to 14th centuries to be about 0.2°C warmer than those from the 15th to 19th centuries, but rather below mid-20th century temperatures. The long-term hemispheric trend is best described as a modest and irregular cooling from AD 1000 to around 1850 to 1900, followed by an abrupt 20th century warming.
Continental-scale surface temperature reconstructions show, with high confidence, multidecadal intervals during the Medieval Climate Anomaly (950 to 1250) that were in some regions as warm as in the mid-20th century and in others as warm as in the late 20th century. With high confidence, these intervals were not as synchronous across seasons and regions as the warming since the mid-20th century. Based on the comparison between reconstructions and simulations, there is high confidence that not only external orbital, solar and volcanic forcing, but also internal variability, contributed substantially to the spatial pattern and timing of surface-temperature changes between the Medieval Climate Anomaly and the Little Ice Age (1450 to 1850). [5.3.5.3, 5.5.1]
Maybe you should try asking the right question first because I've never been a Buzz apologist or BuzzIn, those are your misplaced labels....as is climate change skeptic because climate change occurs.I'd like to explore the correlation of being a Buzz apologist/BuzzIN and a climate change skeptic.
The red was basically the accepted temperature trend before the Mann "hockey stick" graphs in the late 1990s and early 2000s. Amazingly, those are still included in this graphic after it was all discredited.
Here is the famous Mann "hockey stick" graph. Something very similar to this graph was the absolute dogma in AR3 (2001 IPCC) and AR4 (2007 IPCC) reports. Despite the red line in the first graph I posted, and other tree ring data that refuted the Mann data, the IPCC climate scientists adopted the Mann graph as the believed temperature record.
There is no medieval warm period in that graph, despite lots of worldwide evidence it occurred, which has just continued now that the hockey stick has been discredited.
And of course the Mann data (and all the others with similar "methodology") has been debunked and discredited.
In spite of the fact that you state it 3 or 4 times, Mann has never been discredited. He's correct.
Do you not know how to post a link or something? Does someone need to teach you?