Hunga Tonga volcano: impact on record warming

By Javier Vinos.

Here is the Link.

Climate Change: settled or unsettled?

Here are some excerpts.

The climate event of 2023 was truly exceptional, but the prevailing catastrophism about climate change hinders its proper scientific analysis. I present arguments that support the view that we are facing an extraordinary and extremely rare natural event in climate history.

1. Off-scale warming

Since the planet has been warming for 200 years, and our global records are even more recent, every few years a new warmest year in history is recorded. Despite all the publicity given each time it happens, it would really be news if it didn’t happen, as it did between 1998 and 2014, a period popularly known as the pause.

Since 1980, 13 years have broken the temperature record. So, what is so special about the 2023 record and the expected 2024 record? For starters, 2023 broke the record by the largest margin in records, 0.17°C. This may not sound like much, but if all records were by this margin, we would go from +1.5°C to +2°C in just 10 years, and reach +3°C 20 years later.

Moreover, to produce so much warming, almost the entire globe experienced above-average warming. 2023 was a year of real global warming, although most of the warming occurred in the Northern Hemisphere.
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Gavin Schmidt, director of NASA’s climate monitoring institute, also uses the expression “uncharted territory” when he explains that the 2023 anomaly worries scientists, saying that climate models cannot explain why the planet’s temperature suddenly spiked in 2023. Not only was the temperature anomaly much larger than expected, but it occurred months before the onset of El Niño. In his own words: “The 2023 temperature anomaly has come out of the blue, revealing an unprecedented knowledge gap perhaps for the first time since about 40 years ago. It could imply that a warming planet is already fundamentally altering how the climate system operates, much sooner than scientists had anticipated.”[iii] According to Gavin, we could have broken the climate and the models would no longer work.

Instead of abandoning science for wild speculation let’s examine the possible factors responsible for the abrupt warming that Gavin Schmidt dismisses by saying they could explain at most a few hundredths of a degree, for which he has little evidence.

Dismissing natural warming

On the one hand, we have an absolutely unprecedented abrupt warming that the models cannot explain and that has scientists scratching their heads. Such anomalous warming cannot logically respond to the usual suspects, El Niño, reduced sulfur emissions, or increased CO₂, which have been going on for many decades.

On the other hand, we have an absolutely unprecedented volcanic eruption, the effects of which we cannot know, but which, according to what we know about the greenhouse effect, should cause significant and abrupt warming.

Of course, we cannot conclude that the warming was caused by the volcano, but it is clear that it is by far the most likely suspect, and any other candidate should have to demonstrate its ability to act abruptly with such magnitude before being seriously considered.

So why do scientists like Gavin Schmidt argue, without evidence or knowledge, that the Tonga volcano could not have been responsible? If the effect were cooling, the volcano would be blamed without a second’s hesitation, but significant natural warming undermines the message that warming is the fault of our emissions.