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

cold_outside

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:

Interpretation: 

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.

image
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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