Mysterious Warmth at Mackay

By Dr Michael Chase – Re-Blogged From WUWT

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Map above: Changes in maximum temperatures (Tmax) in Australia since 1910, according to the Australian Bureau of Meteorology (BoM)

SCOPE and PURPOSE

At face value this article is about why the region of Australia centred on the city of Mackay in Queensland has appeared to have warmed more than its surroundings since 1910. The short answer is that this hotspot, and almost certainly all the other hot and cool spots on the BoM map shown above, reflect errors in homogenised data. This article starts by revealing clear and irrefutable errors for the specific example of Mackay, with minimal explanation, and then goes on to provide some technical details of the analysis method. The simple validation procedure outlined here is applicable to all homogenised surface air temperature datasets.

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Three Graphs

By Kip Hansen — Re-Blogged From WUWT

 

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A recent study in Oceanography, the Official Magazine of The Oceanography Society, titled  “Atlantic warming since the Little Ice Age” [.pdf here], is interesting in its entirety, with an Abstract as follows:

 

“Radiocarbon observations suggest that the deep Atlantic Ocean takes up to several centuries to fully respond to changes at the sea surface. Thus, the ocean’s memory is longer than the modern instrumental period of oceanography, and the determination of modern warming of the subsurface Atlantic requires information from paleoceanographic data sets. In particular, paleoceanographic proxy data compiled by the Ocean2k project indicate that there was a global cooling from the Medieval Warm Period to the Little Ice Age over the years 900−1800, followed by modern warming that began around 1850. An ocean simulation that is forced by a combined instrumental-​proxy reconstruction of surface temperatures over the last 2,000 years shows that the deep Atlantic continues to cool even after the surface starts warming. As a consequence of the multicentury surface climate history, the ocean simulation suggests that the deep Atlantic doesn’t take up as much heat during the modern warming era as the case where the ocean was in equilibrium at 1750. Both historical hydrographic observations and proxy records of the subsurface Atlantic are needed to determine whether the effects of the Little Ice Age did indeed persist well after the surface climate had already shifted to warmer conditions.”

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No Plan B for Planet A

By Paul Driessen – Re-Blogged From WUWT

Replacing fossil fuels with “renewable” energy would devastate the only planet we’ve got

Environmentalists and Green New Deal proponents like to say we must take care of the Earth, because “There is no Planet B.” Above all, they insist, we must eliminate fossil fuels, which they say are causing climate change worse than the all-natural ice ages, Medieval Warm Period or anything else in history.

Their Plan A is simple: No fossil fuels. Keep them in the ground. More than a few Democrat presidential aspirants have said they would begin implementing that diktat their very first day in the White House.

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The Silly Notion of “Speed Limits for Ships”

By Steve Goreham – Re-Blogged From WUWT

Occasionally a report appears which claims to be wisdom, but after careful analysis, offers solutions that don’t make much sense. Such a report was issued earlier this month by United Kingdom consulting firm GL Reynolds, titled “The multi-issue mitigation potential of reducing ship speeds.” The report proposes that we can reduce global warming by imposing speed limits on ocean-going ships.

The GL Reynolds report concludes that a 10-20 percent reduction in ship speeds would have a “highly positive potential impact” on carbon dioxide (CO2) emissions and nitrous oxide (NOx) and sulfur oxide (SOx) pollutants. The report also projects that a ship speed reduction may reduce fatal collisions with whales.

Container Ships Article

Originally published in TheT&D.

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Climate Extremism in the Age of Disinformation

By Roy W. Spencer – Re-Blogged From Roy Spencer’s Blog

Do the global warming wars ever change anyone’s mind?

I suppose there are a few people whose minds have been changed. As I recall, Judith Curry has said Climategate (now “celebrating” its 10 year anniversary) was her wake-up call that institutionalized climate science might not be all it claims to be. She is now a well-informed and unabashed skeptic of the modern tendency to blame every bad weather event on humans.

While I’m sure there are other examples, the unfortunate truth is that fewer and fewer people actually care about the truth.

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Climate Science Has Died

Reposted from the Fabius Maximus blog

By Larry Kummer, Editor / 17 November 2019

Summary:  Let’s hit “pause” in the climate wars and see how we got here, where we are going, and what we can learn from this mess.

I can’t use this result. It doesn’t support the narrative.

Climate scientist at work - Dreamstime-99364552

Photo 99364552 © Standret – Dreamstime.

At the time I thought this statement was daft. Now I see that she was spot on, but not in the way she meant it. And with results that she did not intend.

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