Michael Mann’s embarrassing tweet after failing to read media release for CERN cosmic ray-climate experiment

Here’s the tweet and Mann’s retweet:

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Here’s the release about the CERN CLOUD experiment.


Source: CERN
Content: Press Release
Date Issued: 6 October 2013
CERN’s CLOUD experiment shines new light on climate change

Geneva, 6 October 2013. In a paper published today in the journal Nature (http://dx.doi.org/, DOI number 10.1038/nature12663), the CLOUD experiment at CERN* reports a major advance towards solving a long-standing enigma in climate science: how do aerosols – tiny solid or liquid particles suspended in the air – form in the atmosphere, and which gases are responsible? This is a key question in understanding the climate, since aerosols cause a cooling effect by reflecting sunlight and by seeding cloud droplets.

The CLOUD researchers made two key discoveries. Firstly, they found that minute concentrations of amine vapours combine with sulphuric acid to form aerosol particles at rates similar to those observed in the atmosphere. Then, using a pion beam from the CERN Proton Synchrotron, they found that ionising radiation such as the cosmic radiation that bombards the atmosphere from space has negligible influence on the formation rates of these particular aerosols.

“Thanks to CERN’s expertise in materials, gas systems and ultra-high vacuum technologies,” said CLOUD spokesperson Jasper Kirkby, “we were able to build a chamber with unprecedented cleanliness, allowing us to simulate the atmosphere and introduce minute amounts of various atmospheric vapours under carefully controlled conditions – in this case amines and sulphuric acid.”

Amines are atmospheric vapours closely related to ammonia, and are emitted both from human activities such as animal husbandry, and from natural sources. Amines are responsible for odours emanating from the decomposition of organic matter that contains proteins. For example, the smell of rotten fish is due to trimethylamine. The CLOUD experiment’s unique ultra-clean chamber allowed the collaboration to demonstrate that the extremely low concentrations of amines typically found in the atmosphere – a few parts per trillion by volume – are sufficient to combine with sulphuric acid to form highly stable aerosol particles at high rates.

The measured sensitivity of aerosol formation to amines came as a surprise, and points to a potentially significant climate cooling mechanism. Moreover, since amine scrubbing is likely to become an important technology for capturing carbon dioxide emissions from fossil-fuelled power plants, this effect is likely to rise in future.

The CLOUD result adds another significant measurement in understanding the climate. But it does not rule out a role for cosmic radiation, nor does it offer a quick fix for global warming.

“This is the first time that atmospheric particle formation has been reproduced with complete knowledge of the participating molecules”, said Kirkby. “However our measurements leave open the possibility that the formation of aerosols in the atmosphere may also proceed with other vapours, for which the effect of cosmic rays may be different. This is an important step forward, but we still have a long way to go before we fully understand the processes of aerosol formation and their effects on clouds and climate.”

CERN press office
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6 thoughts on “Michael Mann’s embarrassing tweet after failing to read media release for CERN cosmic ray-climate experiment”

  1. Easy solution, discard and hide all the experiments that did not produce the desired seeding result, or invert those that went the wrong way, then use a novel new robust statistical technique for seeding, sue anybody that disagrees, print up a fake nobel prize and make a fortune talking about for the next 30 years.

  2. The idea that he’d jump in and make such a sweeping statement shows his commitment to scientific method…

  3. If memory serves, which is some times does not, what he actually said was “Water! Fish fuck in water.”

  4. Oddly, the thought that popped into my head was W.C. Fields when asked why he drank gin rather than water he replied, because fish pee in the water.

  5. The statement seems highly equivocal. It confirms or denies nothing; it only says that this experiment produced very slight results in aerosol formation.
    Clouds and aerosols generally respond to a multitude of factors, I’m sure, as does the entire atmospheric system. We understand cooling elements only about as well as warming elements, which is to say very slightly indeed, and we understand their influences on one another very slightly.
    This experiment says effectively nothing about whether human activity is a significant climate warming factor. Mann is wrong to accept a statement that it disproves a cosmic-ray-aerosol interaction or forcing. But it doesn’t prove a significant forcing either.

  6. Proves they do not read anything, or do not comprehend what they read.

    And it proves they are pathetic if they read David Appell, a self admitted imbecile.

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