The core damage now unfolding in as many as four Japanese nuclear reactors after Friday's post-quake tsunami doused back-up cooling system generators is already becoming stock material for nuclear nihilists. Once again nuclear's perennial opponents are out in force hoping to use this episode to beat back nuclear power.
Greenpeace USA is asking its supporters to email the president and Congress with the suggested language "It's time to invest in clean, renewable energy. Not risky and dangerous nuclear power." This weekend Reuters reported on green parties in France, Italy, and Germany hurriedly parlaying Japan's reactors into a new ploy to push their respective governments away from nuclear. "We cannot master nature, nature rules us," Germany's Green Party parliamentary leader told the news agency.
After a partial core meltdown at Three Mile Island (TMI) in 1979, the American nuclear industry stalled out, overcome by NIMBY-ism. The country built one more nuclear reactor after TMI. While TMI injured no one, the accident wrought lasting devastation on the country's prospects for energy independence with its perfect storm of an ill-timed disaster movie and a sea of media misinformation. The University of Texas at Austin co-hosted a lecture and panel discussion last week on energy's portrayal in the movies. Michael Webber, a mechanical engineering professor at the university and an expert in energy and environmental policy, summed it up thusly, according to the event's Twitter feed: "The China Syndrome did for nuclear what JAWS did for sharks."
Thanks to TMI, the United States has long lost much of the manufacturing infrastructure to efficiently build new full-scale gigawatt nuclear power plants. There are two plants under construction in Georgia, the first after this needless moratorium, and they are now so expensive that President Obama needed to approve a $8 billion loan guarantee (of an estimated $14 billion construction cost) so that Southern Company could obtain its financing for the huge project.
We shouldn't allow America's re-emerging nuclear industry to be swallowed up by a wave of misinformation following this devastating tsunami.
Nuclear is a key element of plans to minimize the impact of global warming. At 17 tons of carbon dioxide per gigawatt-hour, nuclear energy production actually emits less CO2 than wind (solar has nuclear beat by three tons per gigawatt hour). For reference, coal emits over 1,000 tons and natural gas over 600 tons for the same amount of energy. Facts like these have already swayed many environmentalists into the pro-nuke camp. Al Gore has carefully teetered on the edge of full-on nuclear support for some time now.
Holdouts refer to "safe energy" rather than "green energy" alternatives, aiming to exclude nuclear energy which towers over the green energy landscape as the most reliable source out there. Safe energy is a semantic trick along the lines of "pro-life," similarly implying a false dichotomy. That's because American-led nuclear design upgrades expected to power grids by 2020 change the terms of debate.
Meet the iNuke: small modular reactors chock full of elegant design innovations, built cheaply, operating efficiently, and buried underground for your protection. One of the most promising and practical designs is from Corvallis, Oregon-based NuScale. They've got the safest reactor design the industry has ever seen, one that's drawing a scrum of serious shoppers as the company prepares to file for Nuclear Regulatory Commission approval next year.
"We think we're approaching a breaking point where plants are getting so complex and so large that it's reflected in cost," Dr. Jose Reyes, NuScale's chief technology officer, told the audience at MIT's Energy Conference this month. Dr. Reyes drew intense interest from his rapt audience of MIT students and energy industry players at the conference's panel on small and medium nuclear reactors. He quickly got swarmed as his panel came to an end. I had to catch up with him later.
The Department of Energy funded Dr. Reyes and his Oregon State University team in 2000 as part of the Nuclear Energy Research Initiative. "We were commissioned to come up with a design that was small, compact and could be built easily," he told me, initially in the hope that it could be used in developing nations. The team built a functional model unit at their university lab as proof of concept, and NuScale used that lab while overhauling their plans into a commercially viable option. They ended up with a product that costs one-third of a traditional nuclear plant.
The NuScale mini reactor carries a risk of core damage of once in 100 million years. To put that expanse into some perspective, 100 million years ago, flowers had yet to evolve, and dinosaurs roamed the earth. It was the height of the Cretaceous period. Peer reviewed science will not back me up on my next assertion, but I think I have a fair shot of spontaneously turning into a porpoise about once in 100 million years.
We really shouldn't be awed by this kind of technological development, as unreal as it must seem to Green partiers everywhere. Japan's tsunami-drenched reactors are 40 years old. In the same time, space flight has evolved from impractical government-sponsored rockets and shuttles to the dawn of Virgin Galactic. Nuclear just slimmed down too.
In this case, about 70 percent of NuScale's reactor design is similar to the most recent iterations of water-cooled enriched uranium reactors that are common worldwide and share a lineage to those in Japan. But a lot of mutation can occur with a 30 percent DNA swap out, and in NuScale's case, all of it points to safer operating conditions.
For one thing, rather than the huge gigawatt reactor of the kind capped by a massive concrete dome, a NuScale plant has up to 12 individual reactors made up of self-contained modules, each immersed in water and encapsulated by steel. The 65-foot long by 14-foot wide modules will be manufactured under controlled conditions at a central factory and shipped to sites, dramatically cutting down costs. Four modules can power the city of Madison, Wisconsin. All twelve can light up the entire metropolitan area of Memphis, Tennessee.
Because a NuScale plant is broken up into self-contained mini reactors of 45-megawatts each, the failure scenarios only pose so much risk, says Dr. Mohammad Modarres, professor of mechanical and nuclear engineering at the University of Maryland and an international leader in the science of probabilistic risk assessment.
Probabilistic Risk Assessments (PRAs) are the most rigorous step for any engineering design, and take months to produce after numerous computer models based data sources like materials analyses. Engineers begin by brainstorming hundreds of possible system failures, searching for any possible way that radiation could find its way into the environment, and then determine a frequency for every conceivable scenario, in the end determining the possible consequences for each outcome. Three Mile Island had just such a PRA, which was highly prescient and laid out a scenario of system and human error virtually identical to what happened there, but the plant's owners and federal regulators didn't heed its warnings at the time. PRAs earned new status in TMI's aftermath.
The Nuclear Regulatory Commission requires PRAs for new designs and established plants alike, using methods standardized by the mechanical engineering profession. Much as the Food and Drug Administration mandates a series of clinical trials to assess the efficacy and safety of a prospective drug, the NRC's layers of regulators and outside consultants examine PRA data. Dr. Modarres performed NuScale's PRA just as he has done for large scale reactors and presented his findings at last year's International Probabilistic Safety Assessment & Management Conference.
Dr. Modarres says NuScale is the safest reactor he's ever come across, 10,000 times less risk of any level of core damage than currently operating standard reactors, and it's 10 times safer than the Westinghouse AP1000 plants China's building now (pending NRC approval, it's also the design that will go up in Georgia).
So what if a natural disaster cut of external power to NuScale's water pumps that cool the reactor core -- the exact scenario now playing out in Japan?
It can't happen. There are no pumps.
In the NuScale plant, "You don't need a pump -- the heat creates a current of water by natural physics. Everything works by natural phenomena." Instead, the plant's steam generator tube is its weakest link, contributing the largest fraction of its 1 in 100-million-year risk. Physical properties of the tube which carries hot steam to the electricity-generating turbine come into play in the analysis. The tube could rupture, sending radioactive steam into the turbine and depriving the reactor core of water. In NuScale's PRA, Dr. Modarres created technical models of possible wear and tear of the pipe and its safety valves that could occur over the years. "We calculate through the 'physics of failure' an estimated frequency for this event," he says. The model gets even more complex, as the reactor automatically replenishes its water (or human operators can do so) through chemical volume control systems. The PRA models have to take into account the likelihood of this system failing too.
NuScale takes advantage of its design simplicity during its pre-NRC submission phase to change out elements and see how that affects its PRA (that pipe may get further tweaking before the NRC sees it). Such revisions on the fly aren't even possible with most larger more complex plants.
The reactor's size is one of its most important safety features. At 1/26th the size of standard reactors, there's simply less radioactivity to let loose. Dr. Reyes told the MIT crowd, "We've not only reduced the frequency of possible accidents, we reduced the consequences of accidents. That's huge psychologically." People who are afraid of flying don't really care about the frequency of accidents he says, it's the huge consequences of a single accident. "We've eliminated that."
Dr. Modarres explains the worst-case disaster scenario this way: "Even if one of the reactors fails and releases its radiation into the containment vessel, and again if that containment vessel fails and releases its material, it would be releasing that material into water, which is one of the best scrubbers for radioactive material." Ultimately a small amount of radioactive gases could make their way into the atmosphere, but mind you the whole operation is in an underground silo.
Since each module has its own separate metal containment vessel (unlike the traditional design of concrete domes that are getting repeatedly blasted in the hydrogen-fueled explosions at the Fukushima Daiichi plant), the probability of two reactors both leaking radiation is the probability of two independent extremely unlikely events. Even more reactors? Infinitesimal.
What about a major earthquake? "Being inside water, the forces that would be applied to the modules is much less. It's floating inside the water, so they wouldn't have as much force as if they were tied into the ground." Detailed seismic assessments are still being built into the model, and depend on location, but Dr. Modarres does not expect such events will increase major risk significantly.
Representative Edward Markey (D-MA) was sounding the alarm bells this weekend, yesterday sending a letter to President Obama requesting a moratorium on new nuclear power plants, reminiscent of European Greens. In light of the dire challenge posed by global warming, the growing destabilization in OPEC countries, and the ingenuity of America's nuclear engineers, the more appropriate federal response to the vulnerabilities in old nuclear plant designs that we share with Japan is to fully back nuclear energy 2.0 companies like NuScale.
The social network learns more about its users than they might realize.
Facebook, you may have noticed, turned into a rainbow-drenched spectacle following the Supreme Court’s decision Friday that same-sex marriage is a Constitutional right.
By overlaying their profile photos with a rainbow filter, Facebook users began celebrating in a way we haven't seen since March 2013, when 3 million peoplechanged their profile images to a red equals sign—the logo of the Human Rights Campaign—as a way to support marriage equality. This time, Facebook provided a simple way to turn profile photos rainbow-colored. More than 1 million people changed their profile in the first few hours, according to the Facebook spokesperson William Nevius, and the number continues to grow.
“This is probably a Facebook experiment!” joked the MIT network scientist Cesar Hidalgo on Facebook yesterday. “This is one Facebook study I want to be included in!” wrote Stacy Blasiola, a communications Ph.D. candidate at the University of Illinois, when she changed her profile.
Over the last two weeks, Republican presidential candidates have repeatedly missed opportunities to demonstrate that they care about communities outside of their traditional base.
After Mitt Romney’s defeat in 2012, the Republican National Committee published an “autopsy.” “When it comes to social issues,” the autopsy declared, “the Party must in fact and deed be inclusive and welcoming. If we are not, we will limit our ability to attract young people.” The autopsy also added that, “we need to go to communities where Republicans do not normally go to listen and make our case. We need to campaign among Hispanic, black, Asian, and gay Americans and demonstrate we care about them, too.”
The last two weeks, more than any since Romney’s defeat, illustrate how miserably the GOP has failed.
Start with June 17, when Dylann Roof, a young white man enamored of the Confederate flag, murdered nine African Americans in church. Within three days, Romney had called for the Confederate flag’s removal from South Carolina’s capitol. Four days later, the state’s Republican governor and senators called for its removal too. But during that entire week—even as it became obvious that the politics of the flag were shifting—not a single GOP presidential candidate forthrightly called for it to be taken down. Instead, they mostly called it a state decision, a transparent dodge politicians deploy when they don’t want to make a difficult call.
Tuesday is the official deadline for the Greek government to either make a deal with debtors or face default and its consequences.
10: 32 a.m.
The future of Greece’s currency is not as black and white as it might seem. A “no” vote on Sunday’s referendum doesn’t mean that Greece will automatically leave the Eurozone, a fact that Germany’s finance minister, Wolfgang Schaeuble, was keen to remind lawmakers of on Tuesday, according to reports from Bloomberg. The Wall Street Journalhas put together a roundup of five possible options for the country’s currency, which include keeping the euro, having both euro and drachma circulation, and pegging drachmas to euros.
For centuries, experts have predicted that machines would make workers obsolete. That moment may finally be arriving. Could that be a good thing?
1. Youngstown, U.S.A.
The end of work is still just a futuristic concept for most of the United States, but it is something like a moment in history for Youngstown, Ohio, one its residents can cite with precision: September 19, 1977.
For much of the 20th century, Youngstown’s steel mills delivered such great prosperity that the city was a model of the American dream, boasting a median income and a homeownership rate that were among the nation’s highest. But as manufacturing shifted abroad after World War II, Youngstown steel suffered, and on that gray September afternoon in 1977, Youngstown Sheet and Tube announced the shuttering of its Campbell Works mill. Within five years, the city lost 50,000 jobs and $1.3 billion in manufacturing wages. The effect was so severe that a term was coined to describe the fallout: regional depression.
The second episode of the new season was a slow burner with a dramatic twist.
Let’s start at the beginning, with Frank in bed with his wife, Jordan, discussing water stains on the ceiling and childhood entombments. I don’t know about you guys, but I found this whole bit slack and familiar. Maybe there was a two-minute scene in there, but five? Maybe a more charismatic actor could have pulled off that lengthy monologue. But Vince Vaughn is no Robert Shaw, and his childhood basement is no U.S.S. Indianapolis.
The commonwealth is facing a serious debt crisis that could result in default, but that’s only part of the problem.
Puerto Rico is a small island with some big financial problems. Governor Alejandro Garcia Padilla recently told the New York Times that there was no way the island, which has been struggling with about $72 billion of debt, would be able to pay, and instead would try to work out new deals and deferred payments with some of its creditors. This, of course, has lead to fears that the commonwealth will default on its loans.
The admission that Puerto Rico’s finances are much worse than originally thought was spurred by areport commissioned by the Government Development Bank, an agency tasked with developing economic and financial strategies for the commonwealth, and conducted by current and former IMF staffers. The report, nicknamed The Krueger Plan for it’s lead author Anne Krueger, doesn’t mince words when it comes to the outlook for the debt-laden island: "Structural problems, economic shocks and weak public finances have yielded a decade of stagnation, outmigration and debt. Financial markets once looked past these realities but have since cut off the commonwealth from normal market access. A crisis looms.”
People labeled “smart” at a young age don’t deal well with being wrong. Life grows stagnant.
ASPEN, Colo.—At whatever agesmart people develop the idea that they are smart, they also tend to develop vulnerability around relinquishing that label. So the difference between telling a kid “You did a great job” and “You are smart” isn’t subtle. That is, at least, according to one growing movement in education and parenting that advocates for retirement of “the S word.”
The idea is that when we praise kids for being smart, those kids think: Oh good, I'm smart. And then later, when those kids mess up, which they will, they think: Oh no, I'm not smart after all. People will think I’m not smart after all. And that’s the worst. That’s a risk to avoid, they learn.“Smart” kids stand to become especially averse to making mistakes, which are critical to learning and succeeding.
The historian and Knesset member Michael Oren accuses the president of distancing the U.S. from Israel, and calls out left-wing Jews and Israel’s Jewish critics in the American press.
In a recent post, I suggested that the intervention of two men, the former U.S. national security advisor Tom Donilon and the former Israeli ambassador to the United States, Michael Oren, might help improve the dysfunctional relationship between the Obama administration and the government of Israeli Prime Minister Benjamin Netanyahu.
At the time I wrote this, both men had reputations as people who were concerned about preserving the extraordinarily complicated, and extraordinarily close, U.S.-Israel relationship, and both had spent a good deal of time calming the waters between Obama and Netanyahu. Today, Donilon maintains that reputation. As for Oren …
Put it this way: If Goldblog readers would allow me to withdraw the suggestion, I’d be much obliged. Oren has created a new role for himself: acid critic of the Obama administration and of left-leaning American Jews (especially in the press and in the White House) who, he believes, are trading on their Jewishness when they criticize Israel. Oren’s critique, at its heart, is simple: Obama, in part because he wanted to reconcile the U.S. with the “Muslim world” (a very large, ill-defined, and politically complicated concept, in Oren’s mind), decided to distance the United States from Israel; to surprise Israel by altering U.S. Middle East policy without prior notice; and to negotiate with Israel’s most potent enemy without alerting Israeli leaders.
The Islamic State is no mere collection of psychopaths. It is a religious group with carefully considered beliefs, among them that it is a key agent of the coming apocalypse. Here’s what that means for its strategy—and for how to stop it.
What is the Islamic State?
Where did it come from, and what are its intentions? The simplicity of these questions can be deceiving, and few Western leaders seem to know the answers. In December, The New York Times published confidential comments by Major General Michael K. Nagata, the Special Operations commander for the United States in the Middle East, admitting that he had hardly begun figuring out the Islamic State’s appeal. “We have not defeated the idea,” he said. “We do not even understand the idea.” In the past year, President Obama has referred to the Islamic State, variously, as “not Islamic” and as al-Qaeda’s “jayvee team,” statements that reflected confusion about the group, and may have contributed to significant strategic errors.
The star has been accused of having a “large blind spot” on issues of race—but testing the boundaries of jokes is part of the process of stand-up.
There’s a fine line in comedy between subversive and offensive, and with every meteoric rise from stand-up to film and television stardom these days, there tends to be controversy over whether or not that line has ever been crossed. Amy Schumer, whose Comedy Central sketch show Inside Amy Schumer has been dominating the Internet on a weekly basis since its third season debuted in April, and who stars in the upcoming Judd Apatow comedy Trainwreck, is the latest figure to experience the pitfalls of being under such sharp scrutiny. A recent profile of Schumer in The Guardian by Monica Heisey, although largely positive, criticizes the comedian for having a “shockingly large blind spot” on race—and cites some clunky jokes she’s made about Latinos as examples.