S1070004

August 5, 2011

 

RENTON, Wash. — The Renton City Prosecutor wants to send a cartoonist to jail for mocking the police department in a series of animated Internet videos.

 

The “South-Park”-style animations parody everything from officers having sex on duty to certain personnel getting promoted without necessary qualifications. While the city wants to criminalize the cartoons, First Amendment rights advocates say the move is an “extreme abuse of power.”

 

Only KIRO Team 7 Investigative Reporter Chris Halsne holds a key document that really lays bare the city’s intent. The document was quietly filed in King County Superior Court last week. It’s a search warrant accusing an anonymous cartoon creator, going by the name of Mr. Fiddlesticks, of cyberstalking (RCW 9.61.260). The Renton Police Department and the local prosecutor got a judge to sign off as a way to uncover the name of whoever is behind the parodies. Halsne talked with three nationally respected legal experts who believe the use of the cyberstalking statute is likely stomping on the constitution.There goes another “fingerprint”…

 

It’s not just that man-made emissions don’t control the climate, they don’t even control global CO2 levels.

 

Judging by the speech Murry Salby gave at the Sydney Institute, there’s a blockbuster paper coming soon.

 

Listen to the speech: “Global Emission of Carbon Dioxide: The Contribution from Natural Sources”

 

Professor Murry Salby is Chair of Climate Science at Macquarie University. He’s been a visiting professorships at Paris, Stockholm, Jerusalem, and Kyoto, and he’s spent time at the Bureau of Meterology in Australia.

 

Over the last two years he has been looking at C12 and C13 ratios and CO2 levels around the world, and has come to the conclusion that man-made emissions have only a small effect on global CO2 levels. It’s not just that man-made emissions don’t control the climate, they don’t even control global CO2 levels.

 

CO2 variations do not correlate with man-made emissions. Peaks and falls correlate with hot years (e.g. 1998) and cold years (1991-92). No graphs are available from Salby’s speech or paper yet. This graph comes from Tom Quirk’s related work (see below).

 

The higher levels of CO2 in recent decades appear to be mostly due to natural sources. He presented this research at the IUGGconference in Melbourne recently, causing great discussion and shocking a few people. Word reached the Sydney Institute, which rushed to arrange for him to speak, given the importance of this work in the current Australian political climate.

 

The ratio of C13 to C12 (two isotopes of carbon) in our atmosphere has been declining, which is usually viewed as a signature of man-made CO2 emissions. C12 makes up 99% of carbon in the atmosphere (nearly all atmospheric carbon is in the form of CO2). C13 is much rarer — about 1%. Plants don’t like the rarer C13 type as much; photosynthesis works best on the C12 -type -of-CO2 and not the C13-type when absorbing CO2 from the air.

 

Prof Salby points out that while fossil fuels are richer in C12 than the atmosphere, so too is plant life on Earth, and there isn’t a lot of difference (just 2.6%) in the ratios of C13 to C12 in plants versus fossil fuels. (Fossil fuels are, after all, made in theory from plants, so it’s not surprising that it’s hard to tell their “signatures” apart). So if the C13 to C12 ratio is falling (as more C12 rich carbon is put into the air by burning fossil fuels) then we can’t know if it’s due to man-made CO2 or natural CO2 from plants.

 

Essentially we can measure man-made emissions reasonably well, but we can’t measure the natural emissions and sequestrations of CO2 at all precisely — the error bars are huge. Humans emits 5Gt or so per annum, but the oceans emit about 90Gt and the land-plants about 60Gt, for a total of maybe 150Gt. Many scientists have assumed that the net flows of carbon to and from natural sinks and sources of CO2 cancel each other out, but there is no real data to confirm this and it’s just a convenient assumption. The problem is that even small fractional changes in natural emissions or sequestrations swamp the human emissions.

 

UPDATE Inserted: E.M.Smith covered this point well in 2009

 

…

 

“It is often asserted that we can measure the human contribution of CO2 to the air by looking at the ratio of C12 to C13. The theory is that plants absorb more C12 than C13 (by about 2%, not a big signature), so we can look at the air and know which came from plants and which came from volcanos and which came from fossil fuels, via us. Plants are ‘deficient’ in C13, and so, then, ought to be our fossil fuel derived CO2.

 

The implication is that since coal and oil were from plants, that “plant signature” means “human via fossil fuels”. But it just isn’t that simple. Take a look at the above chart. We are 5.5 and plants are putting 121.6 into the air each year (not counting ocean plants). There is a lot of carbon slopping back and forth between sinks and sources. Exactly how closely do we know the rate of soil evolution of CO2, for example?”

 

* A d v e r t i s e m e n t

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Chiefio also found some interesting quotes pointing out that corn (a C4 plant) absorbs more C13, and our mass fields of corn might just muck up the stats… (it’s a good post).

The sources of CO2 don’t seem to be industrialized areas

 

Suspiciously, when satellites record atmospheric CO2 levels around the globe they find that the sources don’t appear to be concentrated in the places we’d expect — industry or population concentrations like western Europe, the Ohio Valley, or China. Instead the sources appear to be in places like the Amazon Basin, southeast Asia, and tropical Africa — not so much the places with large human emissions of CO2!

 

But CO2 is a well mixed gas so it’s not possible to definitively sort out the sources or sinks with CO2 measurements around the globe. The differences are only of the order of 5%.

 

Instead the way to unravel the puzzle is to look at the one long recording we have (at Mauna Loa, in Hawaii, going back to 1959) and graph the changes in CO2 and in C13 from year to year. Some years from January to January there may be a rise of 0 ppmv (ie no change), some years up to 3 ppmv. If those changes were due to man-made CO2 then we should see more of those rapid increases in recent times as man-made emissions increased faster.

What Salby found though, was nothing like what was expected

 

The largest increases year-to-year occurred when the world warmed fastest due to El Nino conditions. The smallest increases correlated with volcanoes which pump dust up into the atmosphere and keep the world cooler for a while. In other words, temperature controls CO2 levels on a yearly time-scale, and according to Salby, man-made emissions have little effect.

 

The climate models assume that most of the rise in CO2 (from 280 ppmv in1780 to 392 ppmv today) was due to industrialization and fossil fuel use. But the globe has been warming during that period (in fact since the depths of the Little Ice Age around 1680), so warmer conditions could be the reason that CO2 has been rising.

 

Salby does not dispute that some of the rise in CO2 levels is due to man-made emissions, but found that temperature alone explains about 80% of the variation in CO2 levels.

 

The up and coming paper with all the graphs will be released in about six weeks. It has passed peer review, and sounds like it has been a long time coming. Salby says he sat on the results for six months wondering if there was any other interpretation he could arrive at, and then, when he invited scientists he trusted and admired to comment on the paper, they also sat on it for half a year. His speech created waves at the IUGG conference, and word is spreading.

 

A book will be released later this year: Physics of the Atmosphere and Climate.

Roy Spencer wrote along similar lines last year

Done