Wisconsin DNR Revises Position on Climate Change: Removes Caused by “Human Activities” from Great Lakes Webpage

Bob Tisdale - Climate Observations

Lee Bergquist opens his article DNR purges climate change from webpage at the Wisconsin Journal Sentinal (my brackets):

The state Department of Natural Resources recently scrubbed language from an agency web page on the Great Lakes that said humans and greenhouse gases are the main cause of climate change. [See DNR webpage The Great Lakes and a changing world.]

The DNR now says the subject is a matter of scientific debate.

The department made the changes on Dec. 21, striking out whole sentences attributing global warming to human activities and rising levels of carbon dioxide.

Bergquist explains:

In the latest changes, the DNR says of climate change, “as it has done throughout the centuries, the earth is going through a change. The reasons for this change at this particular time in the earth’s long history are being debated and researched by academic entities outside the Department of Natural Resources.”

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2016 State of the Climate Report

screen-shot-2016-12-26-at-10-33-41-amThe 2016 State of the Climate Report Presented to the United Nations Climate Conference in Morocco November 2016 gives an excellent and pithy summary on where things stand in regard to Global Warming and/or Climate Change and the manmade CO2 contribution, or non-contribution, to those important topics for anyone interested in the subject.

The report quotes University of London Professor Emeritus Philip Stott in the introduction: “The fundamental point has always been this. Climate change is governed by hundreds of factors, or variables, and the very idea that we can manage climate change predictably by understanding and manipulating at the margins one politically selected factor (CO2) is as misguided as it gets…It’s scientific nonsense.”

Detection and Attribution of Man-made Climate Change

Watts Up With That?

By Andy May

Chapter 10 of the 2013 IPCC Working Group 1 Assessment Report (WG1 AR5) report on climate change deals with how man-made climate change is detected and how much of the total change is due to man. They call the chapter “Detection and Attribution of Climate Change: from Global to Regional,” but in the critical calculation they assume the natural contribution is zero, so we consider “man-made” an appropriate addition to the title of this post. In summary, it says that the Earth’s surface has warmed since 1880 and over half of the warming from 1951 to 2010 is due to man. That humans have some influence on climate is not in dispute, all major species have some influence on climate. Phytoplankton occupy most of the Earth’s surface and, since they photosynthesize, they consume CO2 and produce sugars and oxygen. In all probability, they have…

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Surprising Results From Study: Moderate Cold Kills More People Than Extreme Heat

Watts Up With That?

Guest Post  by Kip Hansen


Science is a wonderful thing.  As time moves on, in a single direction,  Science, as an endeavor, discovers new things and improves our lives.

With a “hat tip” to the inestimable Jane Brody, health journalist at the NY Times who covers the story here, we are reminded of the study [free .pdf]  from Antonio Gasparrini et al. which was published in The Lancet,  July 25, 2015, with the [way too long] title:  “Mortality risk attributable to high and low ambient temperature: a multicountry observational study”.

The bottom-line finding, the take home message, might surprise even readers here at WUWT, quoted in the side-bar of the journal article:


We report that non-optimum ambient temperature is responsible for substantial excess in mortality, with important differences between countries. Although most previous research has focused on heat-related effects, most of the attributable deaths were caused by…

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Climate change debate – latest results

Watts Up With That?

Guest essay by Bevan Dockery

Here is 38 years of empirical data clearly showing a relationship between the satellite temperature and the rate of change of atmospheric CO2 concentration at the Mauna Loa Observatory.

Figure 1. Mauna Loa Observatory

Figure 1 shows the monthly lower tropospheric satellite temperature for the Tropics-Land component in blue and the annual change in CO2 concentration in red. The obvious correlation between the two raises the possibility that there may be some common causal factor whereby the temperature drives the rate of change of CO2 concentration. It is not possible for the rate of change of CO2 to cause the temperature level as a time rate of change does not define a base. For example a rate of 2 ppm per annum could be from 0 to 2 ppm in 12 months, 456 to 458 ppm in 12 months or any other pair of numbers…

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On the Decrease of Hot Days in the US

Climate Etc.

by Turbulent Eddie

Adjusted USHCN data indicate a decrease in CONUS hot days TMAX >= 100°F

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Ocean cycles, The Pause and Global Warming

Watts Up With That?

By Andy May

h/t Joachim Seifert

There is a new post by Dr. Sebastian Lüning and Professor Fritz Vahrenholt, translated by Pierre Gosselin, on the effect of ocean cycles on 20th century warming and the 21st century pause. They had previously written about this in their popular book The Neglected Sun, in English here. Marcia Wyatt and Judith Curry have also written about the effect of ocean cycles here. These roughly 60 to 65-year cycles have the advantage of explaining the warming from about 1910 to 1944 and the warming from 1975 to 2005 with a similar mechanism. This is important, because the two warming events are very similar, as shown here and in figure 1.

Figure 1

In the IPCC WG1 AR5 document (page 887), they have a hard time explaining the earlier 20th century warming. The text is so confusing we will…

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Global warming fails the random natural variation contest

Watts Up With That?

Example of eight random walks in one dimension starting at 0. The plot shows the current position on the line (vertical axis) versus the time steps (horizontal axis). Image: Wikimedia Example of eight random walks in one dimension starting at 0. The plot shows the current position on the line (vertical axis) versus the time steps (horizontal axis). Image: Wikimedia

Previously on WUWT, I covered this contest. At that time, Doug J. Keenan stated:

There have been many claims of observational evidence for global-warming alarmism. I have argued that all such claims rely on invalid statistical analyses. Some people, though, have asserted that the analyses are valid. Those people assert, in particular, that they can determine, via statistical analysis, whether global temperatures are increasing more that would be reasonably expected by random natural variation. Those people do not present any counter to my argument, but they make their assertions anyway.

In response to that, I am sponsoring a contest: the prize is $100 000. In essence, the prize will be awarded to anyone who can demonstrate, via statistical analysis, that the…

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Despite Denial, Data Shows Global Temperatures Are Dropping Fast

Watts Up With That?

All global temperature data sets confirm that global temperature has fallen rapidly in recent months as the recent El Nino ended.

Guest essay by Dr David Whitehouse, The GWPF Science Editor

Over the last couple of years there have been many articles about how they have been record-breakers in global temperature. It’s often sold as a simple ‘the planet is getting warmer only because of us’ story. As I have discussed before the concurrent El Nino was dismissed by some climate scientists as having an insignificant contribution to that record. However, there is a great deal of confusion and diversity in the assessment of its contribution. Some scientists maintain that it was the recent very strong El Nino that elevated the temperature to record levels.

Nevertheless some maintain that warm records would have been broken without the El Nino (although the significant contribution made by the highly unusual warm “Pacific…

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‘Truthiness’ and ‘factiness’ in politicized scientific debates

Climate Etc.

by Judith Curry

The trappings of science can be decoupled from the actual rigor of science.

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