Archive for the ‘The Perfect Storm’ Category
Fukushima: It’s much worse than you think
Sunday, June 19th, 2011– There’s a lot of information and, probably, misinformation going about concerning what’s happened at Fukashima in Japan. And, I’m the first to admit that I don’t know the truth of it. But I do know that governments do try to hide bad news. So, I’ll just present this and time will tell what’s true and what’s not.
– dennis
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Scientific experts believe Japan’s nuclear disaster to be far worse than governments are revealing to the public.
“Fukushima is the biggest industrial catastrophe in the history of mankind,” Arnold Gundersen, a former nuclear industry senior vice president, told Al Jazeera.
Japan’s 9.0 earthquake on March 11 caused a massive tsunami that crippled the cooling systems at the Tokyo Electric Power Company’s (TEPCO) nuclear plant in Fukushima, Japan. It also led to hydrogen explosions and reactor meltdowns that forced evacuations of those living within a 20km radius of the plant.
Gundersen, a licensed reactor operator with 39 years of nuclear power engineering experience, managing and coordinating projects at 70 nuclear power plants around the US, says the Fukushima nuclear plant likely has more exposed reactor cores than commonly believed.
“Fukushima has three nuclear reactors exposed and four fuel cores exposed,” he said, “You probably have the equivalent of 20 nuclear reactor cores because of the fuel cores, and they are all in desperate need of being cooled, and there is no means to cool them effectively.”
TEPCO has been spraying water on several of the reactors and fuel cores, but this has led to even greater problems, such as radiation being emitted into the air in steam and evaporated sea water – as well as generating hundreds of thousands of tons of highly radioactive sea water that has to be disposed of.
“The problem is how to keep it cool,” says Gundersen. “They are pouring in water and the question is what are they going to do with the waste that comes out of that system, because it is going to contain plutonium and uranium. Where do you put the water?”
Even though the plant is now shut down, fission products such as uranium continue to generate heat, and therefore require cooling.
“The fuels are now a molten blob at the bottom of the reactor,” Gundersen added. “TEPCO announced they had a melt through. A melt down is when the fuel collapses to the bottom of the reactor, and a melt through means it has melted through some layers. That blob is incredibly radioactive, and now you have water on top of it. The water picks up enormous amounts of radiation, so you add more water and you are generating hundreds of thousands of tons of highly radioactive water.”
Independent scientists have been monitoring the locations of radioactive “hot spots” around Japan, and their findings are disconcerting.
“We have 20 nuclear cores exposed, the fuel pools have several cores each, that is 20 times the potential to be released than Chernobyl,” said Gundersen. “The data I’m seeing shows that we are finding hot spots further away than we had from Chernobyl, and the amount of radiation in many of them was the amount that caused areas to be declared no-man’s-land for Chernobyl. We are seeing square kilometres being found 60 to 70 kilometres away from the reactor. You can’t clean all this up. We still have radioactive wild boar in Germany, 30 years after Chernobyl.”
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– Research thanks to Tony B.
UN: World Food Prices Highest in at Least 20 Years
Wednesday, June 1st, 2011Prices for major crops climbed Thursday as a U.N. agency said food costs are now at their highest point since the agency began tracking them 20 years ago.
Global prices have surged 2.2 percent just in the past month, according to the U.N.’s Food and Agriculture Organization in Rome. The FAO’s index, which measures the price of staple food items and big commercial crops like corn and soybeans, reached its highest level since 1990.
The price increases have been driven by cereals, meat and dairy products. After rising for eight months, global prices of corn, wheat and soybeans are near record levels set in 2008, when riots erupted in countries like Haiti and U.S. food prices jumped.
U.S. consumers are relatively shielded from the higher grain costs. Average incomes are higher in the United States than in most of the world. And the cost of grain represents only a small portion of the prices U.S. consumers pay for food products. Still, U.S. prices are expected to creep up later this year for items ranging from poultry to soda to wheat bread.
In the developing world, the effects have been dire. Higher food prices have pushed an estimated 44 million people into extreme poverty. Economists think the problem could worsen as governments curtail grain exports to increase their own stockpiles.
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Should we be taking a closer look at the potential dangers of nanotechnology?
Wednesday, June 1st, 2011Nanotechnology offers many benefits, but what about the possible downsides? When it comes to emerging technology, our ability to predict the outcomes of its application is often limited
It is impossible to deny the potential and excitement that nanoscale technology offers for the future. Whether it is in aerospace materials, medical treatments or improving computer devices, nanotechnology cannot be ignored.
But with any emerging technology comes potential risk. How much do we really know about the impacts on society and on health of the tiny nanoscale particles that are being churned for commercial and scientific purposes? Are nanoparticles released as we use those products causing harmful effects to the environment? The application of nanotechnology seems limitless, but where could these powerful ideas lead?
The classic worry about nanotechnology is the “grey goo” nightmare, a hypothetical end-of-the-world scenario involving molecular nanotechnology. Imagine, some time in the far future, that an oil tanker has run aground and is spilling its billions of gallons of cargo into a pristine natural habitat. A flotilla of tiny oil-munching nanorobots is deployed to break down hydrocarbons, rendering the spill harmless. In this science fiction scenario, the nanorobots have the capability of self-replicating, making hundreds of copies in minutes. And, instead of eating only hydrocarbons, the robots begin to eat everything around them. It doesn’t take long before everything on Earth is consumed by the proliferating mass of robots. Life, as we know it, would be gone.
The idea was first raised by Eric Drexler in his 1986 book, Engines of Creation. For those worried about nanotechnology, grey goo is a good reason to pause any progress until we can confirm we completely understand the process and its implications.
Fortunately, Drexler’s scenario is highly improbable – fast-replicating nanorobots would need so much energy and produce so much heat that they would become easily detectable to policing authorities who could stamp out the threat. In 2004, Drexler himself made public attempts to play down his more apocalyptic warnings.
But no technology is entirely safe, and the scientists working in any new field have a burden of responsibility as they step into the unknown.
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Social Security Statement
Tuesday, May 31st, 2011– People say that the US’s Social Security System is going to be fine and others say that its days are numbered and that those in future generations will never get out of it what they’ve paid into it.
– Well, I don’t know the truth of it one way or the other but I did find this disquieting when I visited the US Social Security website this evening:
– Click it to make it bigger.
May was warmest on record – Niwa
Tuesday, May 31st, 2011– Here in New Zealand, this May was the warmest ever. I talked to a friend in central Washington State in the USA today, and she said that they’d just had the coldest May ever there.
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Balmy temperatures and sub-tropical conditions saw New Zealand experience its warmest May on record, in a month that included floods, storms and a tornado.
Data from climate agency Niwa shows the month was almost 2.5 degrees Celcius warmer than usual, with rainfall double normal levels.
The figures won’t be official until tomorrow morning, but principal climate scientists James Renwick said the provisional numbers were extraordinary.
“Two-point-five degrees doesn’t sound like much, but for the average over the whole month that’s huge,” Renwick said.
“Normally 0.5 of a degree is a record-breaker.”
The average monthly temperature had been 13.1C, a temperature normally expected for April, Renwick said.
The previous hottest May, recorded in 2007, had a mean temperature of 12.4C.
Rainfall totals were also extreme, especially in the eastern Bay of Plenty and Nelson regions.
The rain gauge at Whakatane airport showed the region had experienced 2.5 times its normal rainfall, while at Nelson airport, 3.5 times the normal levels were recorded.
Both regions had suffered heavy flooding during May, with residents evacuated from their homes in coastal areas of the Bay of Plenty mid-month due to slips closing roads.
A number of Nelson homes were evacuated last week when rivers burst their banks and threatened to inundate homes.
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Food prices ‘will double by 2030’, Oxfam warns
Tuesday, May 31st, 2011The prices of staple foods will more than double in 20 years unless world leaders take action to reform the global food system, Oxfam has warned.
By 2030, the average cost of key crops will increase by between 120% and 180%, the charity forecasts.
Half of that increase will be caused by climate change, Oxfam predicts, in its report Growing a Better Future.
It calls on world leaders to improve regulation of food markets and invest in a global climate fund.
“The food system must be overhauled if we are to overcome the increasingly pressing challenges of climate change, spiralling food prices and the scarcity of land, water and energy,” said Barbara Stocking, Oxfam’s chief executive.
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