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Climate skeptics have valid reasons to question man-made warming

Friday, January 12, 2018 13:10
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Many people are actively worried about global warming. And it frustrates them that skeptics and “deniers” refuse to acknowledge the “science” of such an urgent, man-made problem.

But there may be valid reasons to dispute the theory that man is responsible for climate change. And to demonstrate why the issue isn’t so clearcut here’s a basic climate question to ponder:

As the level of carbon dioxide (CO2) in the atmosphere increases, does its ability to absorb heat increase, decrease, or remain the same?

Most people will assume the answer is “increase.” After all, CO2 is a “greenhouse” gas. Adding more of it to the atmosphere should mean more heat being “trapped.”

The correct answer, however, is decrease.

How do we know this? Because the U.N.’s very own, Al Gore-friendly Intergovernmental Panel on Climate Change (IPCC) has acknowledged in its reports that CO2 loses the ability to absorb heat as its concentration increases.

The IPCC explains that CO2 follows a “logarithmic dependence,” which means that it takes ever-doubling amounts of CO2 to keep adding the same amount of heat absorption in the atmosphere.

In fact, CO2 absorbs only a certain narrow spectrum of infrared radiation, and the IPCC recognizes that the middle of this band is already “saturated.”

People who fret about man-made warming may find it hard to believe that CO2 actually loses “heat-trapping” ability. But they should know that even the very climate-concerned IPCC admits to such limitations.

They still argue that we need to fear man-made warming, however. And their reason is simply that they believe any additional heat absorbed by CO2 will be greatly amplified by water vapor feedback.

This begs the question … are they right? The answer is “No.”

Water vapor is the primary greenhouse gas of the atmosphere — and responsible for most of the warming that keeps the Earth habitable.

In order to make their case, the IPCC theorizes that any additional warming from CO2 will lead to more water vapor in the atmosphere.

And this water vapor will trap more heat, raising temperatures further. It is this “feedback loop” that is used to justify their predictions of catastrophic, future warming.

It’s an interesting concept, but it contains an inherent problem. Water vapor added to the atmosphere inevitably transitions to clouds.

And cumulus clouds not only reflect solar radiation back into space but also produce rain. And rainfall not only cools surface temperatures but also scrubs CO2 out of the atmosphere.

This is why water vapor feedback remains heavily debated in the scientific community, and even the IPCC admits that “an uncertainty range arises from our limited knowledge of clouds and their interactions with radiation.”

One thing we can all agree on, though, is that the Earth has warmed over the past 150 years, and by roughly 0.85 degrees Celsius. But the cause of this warming may well be the significant increase in solar activity during that time.

In 2016, Norwegian scientists Harald Yndestad and Jan-Erik Solheim reported that solar output during the 20th century reached the highest levels in 4,000 years.

And also in 2016, at least 132 peer-reviewed scientific papers suggested a solar influence on climate.

The IPCC rejects claims of solar variability, though. They argue that changes in solar “irradiance” (brightness) are relatively small.

But recent research from scientists like Danish physicist Henrik Svensmark demonstrates that variations in the sun’s output also affect the solar magnetic field and solar wind — which directly influence ionization in the troposphere and cloud formation.

As the IPCC observed in its first assessment report in 1990, the global climate in recent millennia “has fluctuated over a range of up to 2 degrees Celsius on time scales of centuries or more.”

It’s very possible that the heightened solar activity of the past century has driven recent global warming. As such, there are valid reasons to question the theory of man-made climate change and to urge greater study of the issue.


David Rothbard is president and Craig Rucker is executive director of the Committee for a Constructive Tomorrow, a Washington, D.C.-based public-policy organization founded in 1985.

Read more at Deseret News



Source: https://climatechangedispatch.com/climate-skeptics-have-valid-reasons-to-question-man-made-warming/

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  • PaulTarsuss

    There’s an old joke that goes something like….

    “Two blondes were taking a walk in the country side, enjoying the view, when they cam upon a set of tracks. They began to argue as to what made them, “Bear!” one would say, “Deer!” Exclaimed the other. On they went, “Bear!” “Deer!’….right up until the train hit ‘em.

    Obviously, one could substitute one’s favorite current stereotype for the subjects in the joke above, and it would still remain relevant as a meaningful metaphor to one of the greatest problems vexing our planet today. The enemies of personal freedom, the rights and responsibilities of the Individual, are master ‘side takers’. In fact, I’m certain that behind the scenes, they’ve cast lots as to who is taking who’s side on a great many issues. They are quite accomplished at controlled opposition, group dynamics, groups psychology.

    The advent of reality “tv” shows are profitable experiments by which to hone their craft, while conditioning the last generation to adopt ever more primitive group rationale lifestyles. What passes for rational thinking today, is a far cry from even a few decades ago, much less as far back as the founding brothers of these disjointed states of America.

    Take the highly politicized “climate change” debate…..the powers the be ensure that both sides can rail one against the other to no end and no avail, just as long as the real and critical issues are avoided. This is the same everywhere with all big topics throughout the ‘developed’ nations today.

    It is as if our world is careening out of control like the city bus in the ‘Speed’ movie, only instead of a Sandra Bullock type bravely taking the wheel, we’ve got a thoroughly corrupted cabal at the wheel, smiling ear to ear as the rabble scream and shout about their shared predicament…..only in this scenario, anyone happening to notice or mention that there’s a bomb on board, is thrown under the bus.

    This is happening all across the globe. Many scientists, teachers, reporters, and hapless citizens have lost their lives talking about that which is now ‘verboten’ (forbidden). Christ warned against a ‘beast’ back in the day, that beast was the roman army, and it fulfilled Christ’s prophecies to the letter. He warned that there would be a ‘beast’ in our day, seeking to take dominion over the whole world. It has learned many new tricks from and since the first beast…..and is nearing the conclusion of it’s last meal.

    And the blood of it’s many victims will be demanded back from them, especially those giving the orders behind the scenes.

    The hour is late. Very late.

    http://beforeitsnews.com/science-and-technology/2018/01/supermoon-trilogy-of-winter-20172018-two-down-1-to-go-as-quakes-tsunamis-volcanoes-rumble-2916137.html

    Use the time remaining to make a positive and lasting difference!

    Good Journeys

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