New Paper: No Rise In Weather Extremes – Stable Over The Last 1000 Years!

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Quaternary Science Reviews has published a new paper: Combined dendro-documentary evidence of Central European hydroclimatic springtime extremes over the last millennium by authors Ulf Büntgen et al.

Photo credit: Hannes Grobe/AWI

See abstract here.

Anthropogenic greenhouse gas emissions and associated effects on the Earth’s climate system are supposed to be causing more frequent and severe weather extremes and thus having terrible impacts on ecosystem function, agricultural yield, and human health.

Well, this new study says it aint quite so. The abstract of this paper states it plainly (emphasis and spelling correction added):

Documentary evidence independently confirms many of the dendro signals over the past millennium, and further provides insight on causes and consequences of ambient weather conditions related to the reconstructed extremes. A fairly uniform distribution of hydroclimatic extremes throughout the Medieval Climate Anomaly, Little Ice Age and Recent Global Warming may question the common belief that frequency and severity of such events closely relates to climate mean stages.”

The main highlights:

11,873 living and historical fir ring width samples were compiled across Europe. The world’s largest tree-ring composite continuously spans the AD 962–2007 period. Tree-ring extremes were triggered by April–June precipitation anomalies. Documentary evidence independently confirms dendro signals over the past millennium. Reconstructed extremes may constrain climate model simulations over long timescales.

So yet another climate myth debunked. If anything, it shows that it’s the media and alarmist hysteria that’s extreme, and not the weather.

H/t: Dr. Ghana

 

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2 responses to “New Paper: No Rise In Weather Extremes – Stable Over The Last 1000 Years!”

  1. Bernd Felsche

    Looks like rain on the tree-ring circus.

    (Sorry, could not resist.)

  2. mindert eiting

    This illustrates that for evaluating extremes (variance) enormous amounts of information and time-scales are needed. Compare this with the alarmist approach of cherry picking some extreme events like heat waves here or there. In a monthly lottery we have every month the extreme event of a capatial prize here or there. The alarmist approach is a failure for analytical reasons only. It’s the theatrical Al Gore method of running behind scary scenes. Compare the tornado watchers but that’s just for fun. This is all they have because the job should be done before 2017.

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