Category Archives: Science And Society

Global Warming Update

A prediction of 2013 as a “year without summer.”

Nobody tell Al Gore.

[Update a while later]

To the horror of the warm mongers, global cooling is here:

The increase in global temperatures since the late 19th century just reflects the end of the Little Ice Age. The global temperature trends since then have followed not rising CO2 trends but the ocean temperature cycles of the Pacific Decadal Oscillation (PDO) and the Atlantic Multidecadal Oscillation (AMO). Every 20 to 30 years, the much colder water near the bottom of the oceans cycles up to the top, where it has a slight cooling effect on global temperatures until the sun warms that water. That warmed water then contributes to slightly warmer global temperatures, until the next churning cycle.

Those ocean temperature cycles, and the continued recovery from the Little Ice Age, are primarily why global temperatures rose from 1915 until 1945, when CO2 emissions were much lower than in recent years. The change to a cold ocean temperature cycle, primarily the PDO, is the main reason that global temperatures declined from 1945 until the late 1970s, despite the soaring CO2 emissions during that time from the postwar industrialization spreading across the globe.

The 20 to 30 year ocean temperature cycles turned back to warm from the late 1970s until the late 1990s, which is the primary reason that global temperatures warmed during this period. But that warming ended 15 years ago, and global temperatures have stopped increasing since then, if not actually cooled, even though global CO2 emissions have soared over this period. As The Economist magazine reported in March, “The world added roughly 100 billion tonnes of carbon to the atmosphere between 2000 and 2010. That is about a quarter of all the CO2 put there by humanity since 1750.” Yet, still no warming during that time. That is because the CO2 greenhouse effect is weak and marginal compared to natural causes of global temperature changes.

Reality continues to refuse to conform to the narrative.

The Wisdom Of Elon

I don’t have time to respond right now — I’m getting ready to go down to La Jolla for the ISDC. I may write something on Sunday. Anyway, feel free to discuss in comments.

[Update a while later]

FWIW, I retweeted to Elon with this link.

The Most Extreme Temperature Predictions

…are “looking less likely.” The climbdown begins, at least at the BBC.

But remember, we’re still doomed:

Is there any succour in these findings for climate sceptics who say the slowdown over the past 14 years means the global warming is not real?

“None. No comfort whatsoever,” he said.

Well. All right then.

[Update a few minutes later]

The Guardian says we can’t let our guard down:

Otto said that this most recent pattern could not be taken as evidence that climate change has stopped. “Given the noise in the climate and temperature system, you would need to see a much longer period of any pause in order to draw the conclusion that global warming was not occurring,” he said. Such a period could be as long as 40 years of the climate record, he said.

Got that? Only warming trends are important. Cooling is irrelevant.

And their unjustified self confidence never flags:

Richard Allan, reader in climate at the University of Reading, said: “This work has used observations to estimate Earth’s current heating rate and demonstrate that simulations of climate change far in the future seem to be pretty accurate. However, the research also indicates that a minority of simulations may be responding more rapidly towards this overall warming than the observations indicate.”

He said the effect of pollutants in the atmosphere, which reflect the sun’s heat back into space, was particularly hard to measure.

He noted the inferred sensitivity of climate to a doubling of carbon dioxide concentrations based on this new study, suggesting a rise of 1.2C to 3.9C, was consistent with the range from climate simulations of 2.2C to 4.7C. He said: “With work like this our predictions become ever better.”

Onward, comrades!

Upper Body Strength And Political Beliefs

It’s not as simple as reported:

Put another way, this study says that liberals are a coalition of rich wimpy men and strong poor men. Bu contrast, conservatives are a coalition of rich strong men and poor weak men.

The study found that women are different from men: a woman’s upper body strength did not affect her politics.

Partisans would like to think that it is the smart people who support their side. In reality, though, that doesn’t work: both sides have their share of both smart people and dumb people.

Yes, the notion that smart people are naturally “progressive” is just one of their many conceits.