2009-07-11

Munich Re -- the new sun god?

An exciting development in the development of large scale solar power is an upcoming meeting initiated by reinsurance company Munich Re [LINK]. The giant company is pulling interested parties together to, apparently seriously, discuss possibilities of building a series of large solar thermal plants in northern Africa and the Arabian peninsula and transmitting the power via high-voltage, direct-current (HVDC) cables.

This isn't a new idea, but the fact that such a gigantic company is getting serious about it is a positive direction. It's an expensive proposition, especially because of the HVDC cables, which would run all the way to Europe (at least). But if these companies can actually put up some capital and show that the system works, then I'm sure the idea would spread and governments in North America and Asia would get involved. (Is it all too late? Maybe, but let's try to be a little optimistic today.)

(Okay, the normal spelling of the Egyptian sun god is Ra, but Re is an acceptable alternate spelling [LINK].)

2009-07-10

Are we all going to burn?

Well, if the USA Senate has anything to say about it, we'll all sit and burn coal until we choke on the carbon dioxide floating in the atmosphere. Today the Senate "mothballed" the Waxman-Markey legislation until September [LINK]. Why? Because so-called moderate democrats in the Senate want to make themselves look important. To who? I have no clue, but they claim to be sticking up for farmers and electricity consumers. This is bunk.

This politicization of global climate change is threatening, now more than ever, to doom our entire society to multiple generations of increasing temperature, more extreme weather events, and dramatic alterations to the pattern of rainfall. Not just in far away places, but in regions all across the United States. I'm not just being alarmist here, there is published evidence of the effects already being measurable along with strong evidence that the longer we continue to burn fossil fuels at the present rate, the more irreparable damage is done to the climate system. Examples of recent reports you can take a look at include the new Global Climate Change Impacts in the United States, Ecological Impacts of Climate Change (2009), Global Climate Change and Extreme Weather Events: Understanding the Contributions to Infectious Disease Emergence: Workshop Summary (2008), and the IPCC synthesis report. I'm happy to provide individual studies that support the findings of these reports as well, but they are generally easily found in the report bibliographies.

Do you know a scientist? If so, you're a rare bird!

Just a quick article coming from the Christian Science Monitor by Peter N. Spotts. He reports on a recent study by the AAAS and the Pew Research Center. Apparently, not many people know a scientist, which probably says a lot about our social skills. Even so, my reading of the article suggests that the general public mostly respects scientists and their work. However, the average Joe also seems to overestimate what science can do, and simultaneously rejects or denies or misunderstands what is already done.

What's the solution? Is it more scientist bloggers? No, probably not. How can we get the average American to better cope with scientific results and make decisions that are founded on fact? Well, I don't think it's the scientists who can do that. Scientists need to better engage the public, but that can really only get so far. The American public needs to take science education more seriously.... it's not all just reading, (w)riting, and (a)rithmetic any more, I think we need to add biology, chemistry, and physics to the basics, even if they don't "start" with the letter R.

2009-07-07

Get ready for some Senate committee action!

There are going to be some hearings starting tomorrow that should give a taste for where the Senate is going to take the Waxman-Markey legislation [LINK].

2009-07-01

Waxman-Markey, or some derivative thereof

The NYTimes has an article about the wheeling and dealing going on to get the Waxman-Markey climate/energy legislation through the House [LINK]. It sounds so dirty and counterproductive, but I guess that is how things work in Congress, and without substantial changes to the system, it is the way it has to be. In the end, the Senate is likely to pass the bill, and Obama will sign it into law, and then the USA will finally enter the 21st Century on energy/climate legislation. The questions will remain though: Is it enough? Will it be regulated strongly enough? Do the new rules constrain more powerful action in the future? I don't know the answers to these questions, but with the atmosphere holding 386+ ppm of CO2 [LINK], something has to be done now, so I have to at least support the spirit of the bill. With the recent Copenhagen Synthesis Report urging action, the USA needs to position itself as a leader (if a tardy one) in the mitigation of climate change.

2009-06-21

No, there is not a lake on Mars


While I was traveling around over the past couple weeks, I heard some snippets about a lake being found on Mars. I only just now have had the chance to track down the story [example], which perhaps is now old news. Here's the scoop: a team at University of Colorado, Boulder published a study with some details of a large lake on Mars that dried up about 300 million years ago. The surprising part is that this is much later than lakes are expected to occur on Mars. It's a terrific find, and appears to be a good target for looking for fossilized life.

The news reports appear to have been very, very skewed and misleading. Including the picture that I'll try to put here (might die if the link goes bad). It's of a partly filled lake in a Martian-like setting. Even on Discovery.com this was presented without explanation (unless you actually click on the image and read the caption). It's not cool.

2009-06-19

Alternative medicine is a crock

I just read this rather poor article on CNN [link] covering "alternative" or "complementary" medicine dosed out by clinics just south of the border. The coverage of the topic is rather uneven, perhaps in an attempt to appear balanced. Essentially, it gives the sense that lots of people are seeking out these complementary treatments even though there is no science to back them up, but leaves the reader with the message that, well, maybe they do work.. at least a little. This is a dangerous view. All the treatments they discuss are in addition to conventional treatment. That is to say, when the supplementary treatment "works," it is in the presence of clinically proven treatment. Note that these clinics don't replace traditional treatment because otherwise their complementary treatment would be ineffective. They are placebo. They make people feel like they are doing something, but in reality, these clinics are bilking people of money, and potentially putting them at great harm by undercutting the actual treatments or displacing real doctors from the treatment of the patient's condition. For every "success" story these alternative medicines tout, just imagine the thousands of people who have died or suffered in the hope that a more "natural" method is better than a scientifically proven treatment. I shudder to think of the number of people who have suffered needlessly, and died for no reason other than an ignorance of science and a blind faith for something that is easy.

2009-06-13

Global warming swindle, a link

I am traveling and working to much to keep up with my "regular" posting schedule, but I should be back to normal in another week or so. For now, maybe you should watch another of the great climate denier crock of the week videos that has just been posted:



2009-06-03

CoolIris

Holy moly... http://www.cooliris.com

Having just installed this "simple browser plugin" a mere 10 minutes ago, I am wholeheartedly endorsing it and pleading with you to go and install it.


I can't even try to describe it, except to say that it is paradigm changing for me.

2009-06-01

EPA says carbon emissions to rise (is that a surprise?)

Last week the EPA issued a report that, according the news accounts, says carbon emissions will rise in the next 20 years by about 40%. Here's a link to a very poorly written article: LINK.

So, just thinking out loud here, but the current rise in CO2 concentration is around 2ppm/year (confirmation). If that were constant, then 20 years would be an increase of 40 ppm, taking us to around 420ppm CO2.

Just eye-balling the emissions to concentration curves (curves) suggests a linear fit of about 10ppm increase for every 1Gt increase in emissions. That news article says
As a result, the analysis predicted a steady increase in emissions of carbon dioxide, the greenhouse gas that scientists say threatens a serious warming of the Earth later this century. Between now and 2030, Wednesday's report said, global carbon dioxide pollution is expected to increase by 39%. That translates to 33 billion metric tons in 2015 and 40 billion metric tons by 2030, compared to 29 billion metric tons in 2006, the report said.
So a 40% increase according to that news article is going from 29 to 40, that's 40 divided by 29 (= 1.38, so about 38% increase). The emissions increase by just 11 Gt/year. Using our poor estimate of 10ppm/1Gt, that means 10*11= 110ppm!!

UPDATE: This is mistaken. After consultation with somebody who knows about carbon, I think the way I should have done that is to say that there's a 10ppm increase for a 1Gt/year increase in emission rate. The change from 29 to 40 Gt appears to be the cumulative emissions. This, however, suggests a much lower increase in atmospheric CO2. It isn't totally clear how to make the estimate without making a budget for carbon. I'll try to make that estimate and re-update later.

2009-05-31

ClimateWizard.org: A web resource?



Having just ready this brief article [LINK] about a new web site called ClimateWizard.org, I was skeptical of its usefulness. Essentially, this is a web application that just makes reasonably nice map representations of some climate model runs (from the last IPCC report) guided by user input. The input is limited to what geographic region to map, which admittedly is the only way most people think to look at these kinds of simulations. The user can choose the USA and zoom in on specific states, or can choose "global" and choose individual countries and territories. Not everything seems to work (e.g., Guam doesn't show any data), but most of the buttons I clicked generated maps. The user also gets to choose a specific month, or annual average, and can plot the average or change in surface temperature or precipitation either for the past 50 years, the projections at 2050, or (for the USA) projections for 2100. As of writing this, the choices also including picking one of three models or the model average. It is unclear what exactly is being plotted for the past 50 years, the documentation indicates it is a combined observational data set, but there are two curves in a small timeseries plot that are not obviously explained(figure). All in all, it is a fun little application, though not the grandiose life-altering tool that the news article seems to suggest.



Now, a little criticism to go along with the overview. There are definitely really good things about this application, including using Google Maps as the underlying mapping framework. This is nice because it works well, looks good, and people know how to deal with it. That is a definite win. There are some limited download options, too, which is good so that people (especially students??) can just grab the image and put it into a document. They can also get the data in GIS format, which is good for some small set of people who know what to do with that. It would be nice to expand that to include some other common data formats, like HDF or netCDF. Of course, that would be mostly helpful to more experienced users, which gets to another point. This application, as a framework for quickly looking at data and downloading a small subset of it, seems like it could be really useful for all kinds of people, from policy makers to serious scientists, and back to students (and grad students) and teachers (and college profs). In its current state, it's a toy though. The limitation to these three models is curious, since the data from 20+ models should be readily available, and the limitation to surface temperature and precipitation are arbitrary. Yes, that is what most people will be interested in, but having an advanced tab and then having a lot more variables would be great. For example, maybe a high school or college student is doing a report on climate feedbacks, and wants to see how cloud fraction changes in the models. It's a trivial thing to add to this app, but its absence means the student will have to rely on secondhand information or be much more industrious. My other criticism is that the color choices for the contour maps are not that good. It's the standard blue-to-green-to-yellow-to-red rainbow. It works reasonably well for surface temperature and less well for precipitation. The real problem is that they apply it to the changes, which for most places are small making them light yellow or greenish. It's especially apparent in the precipitation, where it is often difficult to even discern the sign of the change.

Okay, one more important criticism. These global models do a poor job in representing regional climate, and there is little evidence that they accurately predict changes in regional climate to the level that this application implies. You can, for example, zoom in on Haiti and see that the model average temperature change at 2050 is about 1C (except for some whitish points that don't make sense on the color scale). But these are about 15 grid points, which are not the native grid points from the model, which have fraction amounts of land and almost no representation of the topography of Haiti. What I'm saying is that you can't trust a few points from one (or three) models to give an accurate portrayal of climate change unless you can verify the fidelity of the models at those points using observations and have an understanding of the limitations of the modeling framework. Looking at the past 50 years is helpful to ascertain some sense of the models' ability in the region, but as mentioned above, it isn't even clear what is being plotted for that in the application. If the blue line is the models and the black line is the observations, then the correlation is generally pretty poor for Haiti, right, but the trend is pretty decent, it's just that the average of the models doesn't have much variability (unless it is the other way around, or if the blue line is one of the models instead of the ensemble... but these are not explained).

So, overall, I like ClimateWizard.org, but I think there is a lot of room for improvement, both for the present purposes and for future expansions to more serious data exploration.

2009-05-29

More coverage of the Carteret Islands

In the NYTimes.com today (slash yesterday) there's a story about the disappearing Carteret Islands by NEIL MacFARQUHAR. Again the article paints the sea-level rise in the Carteret Islands as a product of global warming, but I remain very skeptical of the assessment. I still haven't seen a reasonable attribution study about these islands, and the rate of sea-level rise there seems at odds with the small global trend.

2009-05-27

The future of energy: oil sands

According to an article from Agence France-Presse, ExxonMobil's Canadian subsidiary is going ahead with a $7BILLION project in Alberta to mine oil out of the oil sands. It's supposed to eventually produce 300,000 barrels per day. That's a spicy meatball.

The company is also touting (read: "greenwashing") it's carbon emissions and efficiency standards, claiming to have reduced emissions by 7% last year. To their credit, they aren't talking about reducing their use of fossil fuels, just being more efficient with them.

What does it all mean? ExxonMobil's products account for a gigantic chunk of fossil fuel carbon emissions, and the fact that they are pouring billions of dollars into expansion means they don't expect to be selling less fossil fuel any time soon. That they are getting more efficient in their treatment of fossil fuel just indicates that they are trying to squeeze every last penny from the cheap fuel (and also get to claim they are being "green"). At the end of the day, these stories are the ones that make me pessimistic that anything will abate humanity's appetite for cheap, dirty energy. Sure there is hope in increasingly aggressive restrictions and regulation of carbon emissions, but with the power/money behind the ExxonMobils of the world, it's hard to imagine that they don't have plenty of wiggle room, nor that they will fail to get more wiggle room built into future regulations.

Or maybe I'm just having a bad day. Read more about ExxonMobil's intersection with climate and environmental issues in a WaPo piece from a couple years ago by Steven Mufson.

2009-05-25

Nuclear power, the book

Though I haven't read a word of this book yet, I'm going to post the link just to get the word out. It's called Prescription for the Planet, and it is written by Tom Blees. He seems like an interesting guy, who has spent much of his life running a small fishing boat, traveling, and trying to provide safe drinking water to Central American children. Somehow in the course of his adventures, he came to be interested in technologies that he think provide a relatively easy way to solve global warming issues. One of them is the Integral Fast Reactor. Not convinced, neither am I, but you can start by checking out Barry Brook's latest blog entry, which provides links to his other entries on this book. Brook seems to be on board, devoting a series of extended posts to discussing the ideas in the book. There is also an official Prescriptionfortheplanet.com website, and you can read chapter 4 for free [link].

I'm hoping to have a chance to devote some time to the book soon, or at least explore some of the technologies that it promotes. If I do, then I'm sure you'll read it here!

2009-05-23

Saturday means a video

Okay... not every saturday means a video, but this one does.

I just wanted to share this week's installment of Climate Denial Crock of the Week with Peter Sinclair, which I have to admit that I've really taken to in the past couple weeks. It is a series of well-produced (by internet standards) short videos that dissect global warming deniers arguments.

This video is actually directly related to a pair of recent posts, in which I showed you Rep. Boehner being a jack-hole and also explained that breathing does not produce a net source of carbon dioxide. It's like blogosphere synergy!


2009-05-22

Friday means a comic

Ok... not every friday means a comic, but this one might as well. It's PhD comics from a couple days ago. I won't paste it in here to avoid copyright issues, but here's the link.

And while you are clicking, hit one of those ads at the top. It's friday after all.

2009-05-20

Stubbornness is a function of age?

I like this quote from Carl Sagan quite a lot:
At the heart of science is an essential tension between two seemingly contradictory attitudes -- an openness to new ideas, no matter how bizarre or counterintuitive they may be, and the most ruthless skeptical scrutiny of all ideas, old and new. This is how deep truths are winnowed from deep nonsense. Of course, scientists make mistakes in trying to understand the world, but there is a built-in error-correcting mechanism: The collective enterprise of creative thinking and skeptical thinking together keeps the field on track.
-- Carl Sagan, The Fine Art of Baloney Detection, Parade, February 1, 1987


There is a lot of information in that quote, really. The part at the end, that scientists cam make mistakes in their attempt to understand the world, is what I want to point out today. Further, it seems to be common for older scientists to become mistaken, and I think for many of them it is that they become locked into that ruthless skepticism that Sagan refers to, but lose part of their openness. We discussed this in depth with Freeman Dyson, who seems to have an emotional reaction to climate change that fires up his skepticism and closes down his openness.

Another example seems to be George Kukla, a renowned scientists from Columbia University. Kukla is best known for his tremendous work in paleoclimate, where his specialty has been in exposing the role that orbital variation plays in changing climate [see bio]. Kukla is now emeritus at Columbia, but is a "special research scientist" at Lamont-Doherty Earth Observatory, and appears to be marginally involved with some ongoing research. Though less visible than Dyson, or less credible people like Pat Michaels or Fred Singer, Kukla has been a skeptic of anthropogenic climate change. He is often quoted (or liberally paraphrased) as believing that variations in sunlight are causing the current global warming, which will turn toward a new ice age in the future.

I just read a 2007 interview with Kukla [link] in Gelf Magazine. I urge you to check it out. Somehow I ended up there after watching a short video clip from Letterman [link] in which Kukla appears. In the interview, Kukla seems to present evidence that the current warming is very similar to warming during previous interglacial periods that then transitioned to glacials. However, there are several points of fact that are misrepresented. For example, Kukla says

The knowledgeable climate students know that the global climate works in cycles. The relatively short cycles happen to be about 60 to 80 years long, out of which one half goes up and the other half down. Right now the Northern Hemisphere appears to be at the turning point of the warming branch. Just wait!

Well, there certainly are cycles in climate, but the "short cycles" of 60-80 years are certainly not well quantified or understood. In fact, I know of no compelling evidence for periodicity in this range. There is a lot of interest in "decadal variability" in the climate system, which could certainly be a source of noise in the spectrum around 60-80 years, but is unlikely to be a cycle by any sort of sensible definition of the word. The second part of the quote above, that the northern hemisphere is now turning from warming to cooling, is likely to be shown false very shortly. This is really just a regurgitation of the common climate change denier tactic of using insignificant short-term trends to say something that is false. We can only hope that Kukla is around in a few more years to see the results.

Here's another quote from the interview:
What happened then was that the shifting sun warmed the tropics and cooled the Arctic and Antarctic. Because the tropics are so much larger than the poles, the area-weighted global mean temperature was increasing. But also increasing was the temperature difference between the oceans and the poles, the basic condition of polar ice growth. Believe it or not, the last glacial started with "global warming"! The shifts of solar orbit today are about two to three times weaker than in the last glacial, or by the way, in the last 400,000 years. So, on that basis, we have little to worry.

In this we see Kukla's motivation: he is so enraptured by the astronomical theory of climate change, that he has closed his mind to other forms of climate change. This is his downfall on this topic, for some reason he can't see the vast difference between past climate change and current global warming. He's still not nearly as severe an offender as other skeptics, though. He recognizes important aspects of anthropogenic activity, but somehow ignores them. He also sees, as he says above, that changes in sunshine are very small right now, and later in the article he even acknowledges that, "No doubt that we have about 10,000 or even possibly 20,000 years still ahead before the major ice advance can start." This implicitly means that there are very different timescales involved, but this just isn't enough for Kukla. Above, he also says that a sign of the oncoming ice age is a warming tropics and cooling poles. However direct observation shows that the polar regions are now warming twice as fast (at least in the Arctic, more mixed in the Antarctic) as the globe as a whole. This should be a red flag, but to the true believer, it is evidence against the common thinking.

Okay, you are getting the idea, and I don't want to beat up on this guy, so just one more quote, showing again that Kukla almost accepts the current thinking:

The CO2 certainly has an influence. For instance, it appears that already now, with still relatively low concentrations, it may have a significant warming impact on the night [temperature] minima. And because the usual way to determine the daily mean is as the average of the daily minimum and maximum, here we go! But it is difficult to be sure: more clouds can do the same.

So he clearly says that people are changing climate, yet then he says they aren't. If you are confused about what Kukla believes, then I think you join a long list that probably also includes Kukla himself.

Again, let me stress that George Kukla has made impressive and important contributions to our understanding of paleoclimates. All I am saying is that his current opinions about global warming seem to be somewhat off the mark. My opinion is that he has become fixated on the astronomical theory of climate change to such a degree that he can no longer tolerate the rational arguments for anthropogenic climate change, which are founded in basic science and backed up by direct observation. Like quite a lot of scientists who are, well, let's just say "getting up there in years," he has developed an emotional response to the current science that can not be defended by scientific arguments. I hope he comes around at some point.

2009-05-13

Marathon runners not a source of CO2 to atmosphere -- shocker!

I'm so glad that RSS exists, so that I don't miss stories like "Barton worries that EPA will regulate runners" from Kate Sheppard at Grist. Did you read it yet? Just in case you didn't, let me recap for you. Representative (from Texas) Joe Barton (Republican) is the ranking Republican on the Energy and Commerce Committee, which means he's the most senior Republican on the committee. This committee's role is, from Wikipedia:

The House Committee on Energy and Commerce has developed what is arguably the broadest (non-tax-oriented) jurisdiction of any Congressional committee. Today, it maintains principal responsibility for legislative oversight relating to telecommunications, consumer protection, food and drug safety, public health, air quality and environmental health, the supply and delivery of energy, and interstate and foreign commerce in general. This jurisdiction extends over five Cabinet-level departments and seven independent agencies--from the Energy Department, Health and Human Services, the Transportation Department to the Federal Trade Commission, Food and Drug Administration, and Federal Communications Commission — and sundry quasi-governmental organizations.

Which is to say, this is a pretty powerful committee. They get to advance (or squelch) a lot of potentially important legislation. And Barton, as ranking member, is a powerful guy within this powerful committee. So it matter that he thinks crazy things, like that marathon runners could be considered a source of pollution. Yeah, didn't you read that article? It goes back to the EPA's decision that carbon dioxide can be considered a pollutant, and as such can be regulated. Barton thinks that people are point sources of carbon dioxide, and I guess because marathons are a large group of heavily exhaling people, Joe thinks that means a large source of carbon dioxide to the atmosphere.

The point Barton is trying, and failing, to make is that carbon dioxide is difficult to regulate because it is a naturally occurring substance that is a basic part of all life on Earth. The reason he is trying to make this point is because he doesn't want to believe that the EPA has the right to regulate carbon dioxide. There are two reasons he doesn't want to accept that. First, because he's a Republican, and that party has decided to oppose regulation of nearly any kind. (Examples, regulating financial institutions like AIG or energy brokers like Enron.) Second, as part of Barton's ideology, he can't accept that humans affect the Earth adversely, so he emotionally reacts to climate change by denying it.

The point I want to make is that Barton is wrong about marathon runners. They aren't a source of carbon dioxide to the atmosphere, even though they do exhale carbon dioxide. The reason is that humans are part of the terrestrial biosphere, which is part of the global carbon cycle, which is basically in balance except for the perturbation from burning fossil fuels. To see this, think about that air you just exhaled, which is relatively enriched in carbon dioxide. Note, you don't breathe in pure oxygen, and you don't exhale pure carbon dioxide. How did that CO2 get into your breath? It is a byproduct of your physiology, mostly it come from breaking down sugars, which provides you with energy. So that means we're a source! No, wait a minute, where did those sugars come from? You ate them! This is exactly why we eat, to ingest the nutrients that will supply us with energy. So think about that for a second: we eat foods that have carbon in various organic molecules, which we break down to get energy, and CO2 is made as a byproduct and respired.

But that means humans (and all animals) make CO2 and put it into the air.

Yeah, but it all comes from somewhere. Let's take me as a simple example, or a cow. The point being, the cow and I are vegetarians, so most of the CO2 we respire comes from breaking down plant matter. Where does the carbon in that plant matter come from? Remember what we all learned as kids, plants breathe in CO2 and breathe out oxygen. Yes, plants take the CO2 right out of the air. They take CO2 from the air, water from the soil, and sunlight, and perform photosynthesis, which is to say 6CO2 + 6H2O → C6H12O6 + 6O2. Like magic, isn't it. On the right side are just 6 molecules of oxygen along with a sugar molecule that is holding onto some carbon and oxygen, which I'll eat and break down for energy, releasing CO2. Magic.

So there's a balance... like a cycle of carbon in the biosphere. This is why, in principle, biofuels should be carbon neutral. Breaking down plant matter moves CO2 around, eventually expelling it into the atmosphere, but eventually it is sucked back into the biosphere by autotrophs like plants and phytoplankton.

So what's the problem with burning fossil fuels? Well, that takes carbon from the lithosphere and suddenly introduces it to the atmosphere-biosphere-ocean system. There is normally exchange between the lithosphere and the rest of the climate system, but that is a very slow process, which combustion accelerates. There's no where for that extra CO2 to go because each part of the cycle only has so much wiggle room. The result is a build-up of CO2 in the atmosphere, where it enhances the greenhouse effect, and chaos ensues. Carbon dioxide isn't a pollutant like CFCs, then, but the carbon dioxide emitted by burning fossil fuels is basically the same. Whatever oil, coal, or natural gas is pulled out of the rocks needs to be accounted for, because that is the potentially harmful carbon.