Mid June Arctic Ice Lopsided

Science Matters

In the first half of June 2019, the shift from ice to water is unusually lop-sided in two respects. The image above, supported by the table later on shows that in the last two weeks water has opened up faster on the Pacific side, and much slower on the Atlantic side, with the exception of Baffin Bay. The other surprise is that MASIE shows much less ice than does SII, a reversal of the typical situation.

The graph below shows the surprising discrepancy between MASIE and SII appearing in May and continuing in June.

Note that the NH ice extent 12 year average declined from 12.7M km2 to 10.9M km2 during in the last 30 days. MASIE 2019 shows about the same decline from 11.9M km2 to 10.3M km2. That track matched 2016 in May, but is now closest to 2010 and below other years. Interestingly SII showed a much…

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Extream

Sierra Foothill Commentary

Dr. Judith Curry’s post at WUWT on preparing to testify before Congress.

Politics versus science in attributing extreme weather events to manmade global warming.

If you follow me on twitter, you may have noticed that I was scheduled to testify before the House Oversight and Reform Committee on Jun 12 [link]. The subject of the Hearing is Contending with Natural Disasters in the Wake of Climate Change.

Full Post HERE.

Conclusions

So where does all this leave us in the climate debate? There is very little in the way of extreme weather events that can convincingly be attributed to manmade global warming, even if you are assuming that all of the recent warming is manmade.

Global warming activists will continue use extreme events as an argument against fossil fuels, even though there is little to no evidence to support this. Without this argument, there is very little left to…

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High School Climate Indoctrination Using AP Environment Textbooks

PA Pundits - International

By Lois Kaneshiki~

Jordan Peterson, a worldwide pop-culture self-help phenomenon and University of Toronto psychology professor, has repeatedly warned that “Liberal colleges aren’t about education; they’re about political activism.” It is widely believed and experienced by conservatives that our universities are doing more to indoctrinate our students than truly educate. What many people do not realize is the same thing is being done in our public K-12 schools.

I am one of nine elected directors on the school board in the Hollidaysburg Area School District in central Pennsylvania. Among other responsibilities, school boards are charged with approving their districts’ textbooks and curricula. In most cases, the books are rubber-stamped “yes” by the boards.

What is the point of voting to approve books if you don’t read them? You can get monkeys to do that. So, I try my best to read the books.

When my board placed approval of…

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Climate Changes Both Ways

Science Matters

The title comes from a news event last week when President Trump reminded Prince Charles of a natural truism:  Climate change goes both ways.  A media freak out ensued, as shown by this example from Newsweek.  Excerpt in italics with my bolds.

President Donald Trump said Wednesday he believes there has been a change in the weather due to climate change, but that “it changes both ways.”

The president then explained his views on the climate. “Don’t forget, it used to be called global warming, that wasn’t working, then it was called climate change, now it’s actually called extreme weather because with extreme weather you can’t miss,” the president said.

Environmental watchdog groups now advocate calling the phenomenon “climate catastrophe.”

It seemed to me that Trump is learning from his briefings with William Happer, and is finding the weak spots in the alarmist house of cards.  It…

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Ocean SSTs Cooled in May

Science Matters

The best context for understanding decadal temperature changes comes from the world’s sea surface temperatures (SST), for several reasons:

  • The ocean covers 71% of the globe and drives average temperatures;
  • SSTs have a constant water content, (unlike air temperatures), so give a better reading of heat content variations;
  • A major El Nino was the dominant climate feature in recent years.

HadSST is generally regarded as the best of the global SST data sets, and so the temperature story here comes from that source, the latest version being HadSST3.  More on what distinguishes HadSST3 from other SST products at the end.

The Current Context

The chart below shows SST monthly anomalies as reported in HadSST3 starting in 2015 through May 2019.
A global cooling pattern is seen clearly in the Tropics since its peak in 2016, joined by NH and SH cycling downward since 2016.  2018 started with slow warming after…

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Can Climate Modelers Be Serious?

PA Pundits - International

By Dr. Jay Lehr ~

Fear-mongers daily prophesy the end of the world as we know it if we do not convert our planet to wind and solar energy. Sensible folks realize that we would then be living again the life of the 19th century. The man-caused global warming scare may well be the best false fear-mongering ever conceived. It has half the world clamoring to be lead to safety from climate change without a shred of physical evidence. What they do have are mathematical equations considered to be models of the Earth’s climate.

Our government has financed more than one hundred efforts to model our planet for the better part of three decades. They continue to do so though none could ever predict the known past or after a decade of study accurately predict what was to happen ten years later. If you watched this years Indianapolis 500 motor…

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The physics of evaporation explained – pressure is the key factor

Tallbloke's Talkshop


Not what some might have imagined perhaps. Researchers found that temperature difference between the surface and the liquid was less important than ‘the difference in pressure between the liquid surface and the ambient vapor’.

For the first time, MIT scientists have analyzed the evaporation process in detail at a molecular level and determined the physics of evaporation, reports Tech Explorist.

Evaporation is the process by which water changes from a liquid to a gas or vapor. The process is the primary path for water to move from the liquid state back to the water cycle as atmospheric water vapor.

Evaporation commonly occurs in everyday life. When you get out of the shower, the water on your body evaporates as you dry. If you leave a glass of water out, the water level will slowly decrease as the water evaporates.

For the first time, MIT scientists have analyzed the evaporation…

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