Japan could decide on fate of radioactive waste water before the Olympics in July
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Fukushima Water Waste Decision Could Come Before Tokyo Olympics, VOA, 26 Jan 2020, Japanese officials say a decision on how to deal with radioactive water from the Fukushima nuclear plant could come before the Tokyo Olympics begin in July……
TEPCO officials recently guided a Reuters reporter around the plant, which covers about 3.5 million square meters in northeast Japan. The reporter described large cranes being used to break up major parts of the plant’s structure. The reporter also described operations aimed at removing spent fuel from a reactor. Overall, about 4,000 people are taking part in the cleanup effort, Reuters reported. Some Olympic events are set to take place within 60 kilometers of the destroyed plant, Reuters said. One major part of the cleanup has involved treating and storing contaminated water from the area. TEPCO has predicted that Fukushima will run out of all its storage space for water by 2022. A government group studying future storage solutions said last month that it had decided on two main possible solutions. One solution is to treat the water and then control its release into the Pacific Ocean. The other would be to let the water evaporate. Japanese experts say the government may decide on a solution within the next few months. Either process is expected to take years to complete. Joji Hara is a Tokyo-based spokesman for the power company. He told Reuters that TEPCO has already been making preparations to inform the public about any developments related to Fukushima. “The Olympics are coming, so we have to prepare for that, and TEPCO has to disclose all the information – not only to local communities but also to foreign countries and especially to those people coming from abroad,” Hara said….. oji Hara is a Tokyo-based spokesman for the power company. He told Reuters that TEPCO has already been making preparations to inform the public about any developments related to Fukushima. “The Olympics are coming, so we have to prepare for that, and TEPCO has to disclose all the information – not only to local communities but also to foreign countries and especially to those people coming from abroad,” Hara said. The Olympic torch will be carried through a sports center called J-Village. The center served as an operations base for the Fukushima nuclear plant during the first years after the disaster. The torch will then pass through areas near the destroyed power station on its way to Tokyo. Last month, the environmental group Greenpeace said it found radiation “hotspots” at J-Village, about 18 kilometers south of the plant. When Tokyo was chosen for the 2020 Summer Olympics, Prime Minister Shinzo Abe declared that Fukushima was “under control” and would not affect activities related to the Games. https://learningenglish.voanews.com/a/fukushima-water-waste-decision-could-come-before-tokyo-olympics/5254594.html |
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USA’s National Nuclear Security Administration (NNSA) spurns environmental assessment for plutonium cores
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In 2018, the current administration determined that the U.S. would increase pit production at LANL and begin production at the Savannah River Site, located in South Carolina. Savannah River has never produced plutonium pits, let alone the planned 50 per year. For Savannah River, NNSA has determined that it would follow the National Environmental Policy Act (NEPA) and issue a full environmental impact statement for public review and comment. The federal agencies have refused to conduct a programmatic environmental impact statement for operations at both facilities, including the transportation of nuclear materials between them. For LANL, NNSA said it would produce a supplemental analysis to the 2008 environmental impact statement. A supplemental analysis may not address the impacts of the 2011 Las Conchas fire, increased hexavalent chromium in the regional aquifer, and increased seismic danger on the Pajarito Plateau, which LANL occupies. The 1997 decision to limit the number of pits to 20 is the result of citizen litigation. The Natural Resources Defense Council (NRDC), based in Washington, DC, represented 39 citizens groups from around the country against DOE. CCNS was one of the citizen plaintiffs, along with Tri-Valley Communities Against a Radioactive Environment, or Tri-Valley CARES, located in Livermore, California, where the Lawrence Livermore National Laboratory, LANL’s “sister” nuclear weapons laboratory, is located. Marylia Kelley, Executive Director of Tri-Valley CAREs, said, “NNSA’s refusal to complete programmatic environmental review before plunging ahead with plans to more than quadruple the production authorization for plutonium bomb cores flies in the face of our country’s foundational environmental law, the [NEPA], and a standing federal court order mandating that the government conduct such a review. The order was obtained in prior litigation by [NRDC] on behalf of itself, Tri-Valley CAREs, and additional plaintiffs. Today, I find myself shocked but not surprised that NNSA would so flagrantly flout the law. [] My group stands ready to uphold NEPA and the specific court order.” http://www.trivalleycares.org/ For more information, please see the following documents [links provided by Nuclear Watch New Mexico]: NNSA’s Federal Register Notice of Availability for the final Supplement Analysis is available at https://www.govinfo.gov/content/pkg/FR-2020-01-08/pdf/2020-00102.pdf It provides succinct background. NNSA’s final Supplement Analysis is available at https://www.energy.gov/sites/prod/files/2020/01/f70/final-supplement-analysis-eis-0236-s4-sa-02-complex-transformation-12-2019.pdf The 1998 court order that requires DOE to prepare a supplemental PEIS when it plans to produce more than 80 pits per year is available as Natural Resources Defense Council v. Pena, 20 F.Supp.2d 45, 50 (D.D.C. 1998), https://law.justia.com/cases/federal/district-courts/FSupp2/20/45/2423390/ |
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2020 Olympic events worryingly close to radioactive areas
In an Olympic year, Japan faces decision over contaminated Fukushima water Aaron Sheldrick OKUMA, Japan (Reuters)24 Jan 2020, – At the wrecked Fukushima nuclear plant north of Tokyo, workers in protective suits are still removing radioactive material from reactors that melted down after an earthquake and tsunami knocked out its power and cooling nearly nine years ago.
On an exclusive tour of the plant, spread over 3.5 million square meters (865 acres), Reuters witnessed giant remote-controlled cranes dismantling an exhaust tower and other structures in a highly radioactive zone while spent fuel was removed from a reactor.
Officials from Tokyo Electric, which owns the plant, also showed new tanks to hold increasing amounts of contaminated water.
About 4,000 workers are tackling the cleanup, many wearing protective gear, although more than 90% of the plant is deemed to have so little radioactivity that no extra precautions are needed. Photography was highly restricted and no conversations were allowed with the workers.
Work to dismantle the plant has taken nearly a decade so far, but with Tokyo due to host the Olympics this summer – including some events less than 60 km (38 miles) from the power station – there has been renewed focus on safeguarding the venues…….
The buildup of contaminated water has been a sticking point in the cleanup, which is likely to last decades, and has alarmed neighboring countries. In 2018, Tepco said it had not been able to remove all dangerous material from the water – and the site is running out of room for storage tanks.
Officials overseeing a panel of experts looking into the contaminated water issue said in December choices on disposal should be narrowed to two: either dilute the water and dump it in the Pacific Ocean, or allow it to evaporate. The Japanese government may decide within months, and either process would take years to complete, experts say……..
Athletes from at least one country, South Korea, are planning to bring their own radiation detectors and food this summer.
Baseball and softball will be played in Fukushima City, about 60 km (38 miles) from the destroyed nuclear plant. The torch relay will begin at a sports facility called J-Village, an operations base for Fukushima Daiichi in the first few years of the disaster, then pass through areas near the damaged station on its way to Tokyo.
In December, Greenpeace said it found radiation “hotspots” at J-Village, about 18km south of the plant.
When Tokyo won the bid to host the 2020 Summer Olympics Prime Minister Shinzo Abe declared that Fukushima was “under control” in his final pitch to the International Olympic Committee.
In 2016, the Japanese government estimated that the total cost of plant dismantlement, decontamination of affected areas, and compensation would be 21.5 trillion yen ($195 billion) – roughly a fifth of the country’s annual budget at the time.
(Reporting by Aaron Sheldrick: Editing by Gerry Doyle) https://mobile.reuters.com/article/amp/idUSKBN1ZK0CV?__twitter_impression=true
Vast swarm of locusts ruining the livelihood of 1000s in East Africa
Locust swarm 37 miles long and 25 miles wide threatens crops across swathes of east Africa, ITV News, 17 Jan 2020, A swarm of locusts measured at 37 miles long and 25 miles wide has been tracked in Kenya – and the insects are now threatening to decimate crops across swatches of east Africa.
The most serious outbreak of desert locusts in 25 years is posing an unprecedented threat to food security in some of the world’s most vulnerable countries, authorities say.
Unusual climate conditions are partly to blame.
Kenya’s Intergovernmental Authority on Development said: “A typical desert locust swarm can contain up to 150 million locusts per square kilometre.
“Swarms migrate with the wind and can cover 100 to 150 kilometres in a day. An average swarm can destroy as much food crops in a day as is sufficient to feed 2,500 people.”
Roughly the length of a finger, the insects fly together by the millions and are devouring crops and forcing people in some areas to bodily wade through them.
The outbreak of desert locusts, considered the most dangerous locust species, also has affected parts of Somalia, Ethiopia, Sudan, Djibouti and Eritrea and IGAD warns that parts of South Sudan and Uganda could be next.
The “extremely dangerous” outbreak is making the region’s bad food security situation worse, the United Nations’ Food and Agriculture Organisation has warned.
Hundreds of thousands of acres of crops have been destroyed……. https://www.itv.com/news/2020-01-17/locust-swarm-37-miles-long-and-25-miles-wide-threatens-crops-across-swathes-of-east-africa/?fbclid=IwAR1cn3AzYPruUHLGk_0dgXtQvDvh9bjrehBk7AeCTXeru2AjLKdlmmrYz_g
Radioactive micro-particles still a hazard to the Olympics in Japan
Nukewatch 10th Jan 2020. Hundreds of thousands of people—athletes, officials, media, and spectators—will flood into Japan for the 2020 Olympics.Soon after the start of the meltdowns in 2011, experts began warning of exposure to radioactive micro-particles or “hot particles”—a type of particle that poses a danger unaccounted for by regulatory agencies. In order to understand the special danger posed by these particles at the Olympics and beyond, we mustfirst understand the current state of radiation exposure standards.
Australian bushfire smoke across the Pacific shows how French nuclear tests spread radiation
fallout from nuclear tests affected islands such as Tahiti. Smoke from Australia this month drifted over the south of French Polynesia after crossing New Zealand.
Mr Temaru said this was more than proof that fallout from France’s atmospheric nuclear weapons tests at Moruroa spread while France maintained they didn’t affect Tahiti.
He again called on France to tell the full truth about this dark chapter of history.
Until 1974 France detonated 46 atomic bombs over Moruroa and Fangataufa before continuing the tests with underground blasts.
France maintained until a decade ago that its nuclear tests were clean and posed no risk to human health.
A law brought in in 2010 offered compensation but its criteria were widely seen as too narrow because most applications by those suffering poor health were thrown out.
Its revision was changed again, leaving veterans organisations still dismayed. Mr Temaru made the comments as his Tavini Huiraatira party campaigned for the March municipal election.
However, Mr Temaru is yet to say whether he will seek re-election to the mayoralty of Faaa which he has held since 1983.
Among the candidates known so far are two assembly members of the ruling Tapura Huiraatira party.
The oceans are getting hot
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Each year, unfathomable amounts of energy are added to the oceans. Scientists measure heat in joules; the amount of heat in the oceans is so large that we report it in zettajoules. What is a zettajoule? It is 1,000,000,000,000,000,000,000 joules. The amount of heat we are putting into the oceans is equivalent to about five Hiroshima atom bombs of energy every second.
I am part of the team of researchers that published a paper on ocean warming that shows the total heat of Earth is increasing with global heating, as scientists have predicted for decades. Each year, we take Earth’s temperature to try to determine what is happening to our climate. Each year the news is worse than the year before. There is hope, which I will discuss later. But first, let’s talk about the new study. As humans emit heat-trapping gases into the atmosphere, it creates an energy imbalance. There is more heat coming in than going out. That means the Earth is out of balance, and temperatures are rising. The vast majority of the excess energy – more than 90% – ends up in the oceans. Consequently, ocean temperatures are rising, and we can measure it. Global warming is really ocean warming, and it has severe consequences. First, it makes ocean levels rise, because warming water expands. Scientists estimate that by the year 2100, oceans will be about 3ft higher than they were in the year 2000, displacing 150 million people around the world. Warmer oceans also make our weather more extreme. They supercharge typhoons and hurricanes. They make rains more deadly and flooding more severe. The rising temperatures are also threatening sea life. We are experiencing major die-offs of coral reefs, which are incredibly important to ocean biodiversity. Rising ocean water is not just a problem for fish and sea life, it is a problem for everyone. The leader of our team, Dr Lijing Cheng, developed an innovative way to measure ocean temperatures. We only get data where we place temperature sensors, and sophisticated mathematics are used to fill in the gaps and create a continuous picture of what is happening. His method of filling in the data gaps has been shown to be very accurate and scientists around the world have adopted the techniques. Often when scientists report climate data, they try to show trends. It isn’t so important what the ocean temperatures were last year or what they will be this year. What really matters is the trend: are the oceans getting hotter or colder? Using the late 1990s as a reference, we see that years prior are colder and years after are warmer. In fact, we see that the oceans have warmed continuously since about 1990. This long-term trend is what climate breakdown looks like, and it is terrible news for the future of the planet. All reasonable people know that the climate is warming and humans are the cause. Sometimes, I am asked for proof of warming, and there are many things I can point to: ice is melting, air temperatures are increasing, sea levels are rising, etc. But the best proof of warming is in the oceans. No one can dispute the data. The oceans are unequivocally warming. So, what do we do about it? Well, we can begin to use energy more wisely. This will not only help with the climate crisis but save money as well. Secondly, we can maximise our energy from renewable sources such as wind, water, and solar. One of the things that gives me hope is that energy from solar and wind power is now cheaper than dirty coal. The benefits of solar and wind depend, of course, on how sunny or windy the conditions are, but with the drop in green energy prices, it no longer makes economic sense to build coal plants. Another bit of hope is represented by the growing actions of our youth. Make no mistake, the Greta Thunbergs of the world will change things in ways that privileged middle-aged white men like me cannot. Their generation will inherit a dire situation, but they have the passion to act, and decades of unarguable evidence that they must. So yes, 2019 set yet another dire record for Earth’s climate. But the fight continues to make the future more habitable for our children and their children.
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Thorium and uranium pollution from Rio Tinto’s Madagascar mine
Concerns about radioactive contamination dog Rio Tinto’s Madagascar mine, MONGABAY, by Malavika Vyawahare on 31 December 2019
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Trump’s plan to systematically remove environmental protection
Trump’s 2020 plan: Change the rules on rules, Kelsey Brugger, E&E News reporter Greenwire: Friday, January 3, 2020 In the first half of 2020, Trump officials are hurrying to fundamentally change the way environmental rules are crafted.The administration plans to finalize regulations that could hamstring future presidents from making rules that rely on public health studies or fail to fully consider the benefits to Americans.
Trump’s regulatory plan released last fall showed hundreds of “economically significant” actions that the administration plans to finalize this year. Of those, at least 18 are noteworthy environmental rules — on air pollution and emissions to drilling and water quality.
But it’s Trump’s rules on the rulemaking process itself that could have the most lasting impact, according to experts.
For example, EPA’s proposed rule, “Strengthening Transparency in Regulatory Science,” could restrict the scientific evidence used to write air pollution rules.
The Trump administration also plans to change the way cost-benefit analyses are calculated, weakening future limits on power plant emissions, for example. Both rules are expected to advance in early 2020.
“Those are foundational,” said Betsy Southerland, a former longtime senior EPA career staffer and member of the Environmental Protection Network. “If they are finalized, from now on all environmental rules cannot count co-benefits and cannot use public health studies, then they can paralyze future rulemaking while the litigation slowly winds forward.”
It would take considerable time for a new administration to reverse those rollbacks, and certain Trump actions could get lost in the morass. The Obama EPA similarly could not undo some George W. Bush-era Clean Air Act permits that allowed aging facilities to continue to operate.
But time is running out.
The administration is up against a May deadline: Any regulations completed after that point would be subject to review under the Congressional Review Act. If 2021 ushers in a new president and a left-leaning Congress, the pair could undo many of Trump’s controversial triumphs.
Generally, not much happens in the federal government during an election year, when administrations tend to enter “political lockdown.” But in the Trump era, “unprecedented” is typical. And Trump continues to campaign on aggressive deregulation………
n 2020, the administration is expected to complete several environmental priorities.
The changes most concerning to Southerland included the WOTUS rewrite, the Affordable Clean Energy repeal and other pesticide reviews that are being done under the Toxic Substances Control Act, she said. “They are racing to finalize all of the damaging rollbacks in 2020,” she said.
Other drafts expected to be released in the coming weeks or months include the National Environmental Policy Act, which Trump ordered to be revised to ease permitting requirements when he first entered office; the Mercury and Air Toxics Standards, which would revoke past findings of mercury emissions and other pollutants; and the clean car standards, a joint effort of EPA and the Department of Transportation.
That two-part effort would weaken Obama-era fuel economy standards and prevent California from setting its own stricter standards (Greenwire, Nov. 20, 2019).
The Trump mantra, in a large part, has simply been to undo what Obama did…….Twitter: @kelseybrugger Email: kbrugger@eenews.net https://www.eenews.net/stories/1061984181
UK: legal action against environmental destruction by Sizewell nuclear project
Crowd Justice (accessed) 30th Dec 2019, Together Against Sizewell C (TASC) is an unincorporated citizens’ group
formed to oppose the building of Sizewell C’s twin nuclear reactors and
associated works in Suffolk Coast & Heaths Area of Outstanding Natural
Beauty (AONB) in a legal open, peaceful and fully accountable manner.
TASC has mounted a legal challenge against East Suffolk Council’s decision to
approve the planning application submitted by EDF, the nuclear developer,
to: – chop down 100-year-old Coronation Wood, turn a large area of priority
habitat acidic grassland, known as Pillbox Field, into a 576 space car
park, relocate over 320,000 sq. feet of 7 largely non-essential and
non-operational Sizewell B buildings and an additional 128 car parking
spaces, that will encroach further into the AONB. Most of these
buildings/facilities could be located outside the AONB. The works are
needed to free up land for the construction of Sizewell C as the existing
site is too small and are clearly integral to the wider Sizewell C
development.
https://www.crowdjustice.com/case/save-coronation-wood/
BBC 30th Dec 2019, Campaigners opposing a new nuclear power station are seeking a judicial review over a “premature” decision to allow woodland to be felled. EDF Energy wants to build two reactors next to Sizewell B in Suffolk and in September was told it could chop down Coronation Wood on the site. TogetherAgainst Sizewell C (Tasc) said the area was vital for wildlife. East
Suffolk Council said it would respond to the campaigners’ challenge in due
course.
Nuclear cost and water consumption – The elephants in the control room
Nuclear cost and water consumption – The elephants in the control room, Open Forum.com.au.
Peter Farley | December 20, 2019 These are Plant Vogtle in the US (US$27.5bn, 2.2GW), Framanville France (€12.4bn+, 1.6 GW), Olkiluoto in Finland (around €10 bn+, 1.6 GW) and Hinckley Point in the UK (₤22 bn+, 3.2 GW).
There are two further plants whose power costs have been published, Akkuyu in Turkey US$127/MWh and Barakah in the Emirates US$110/MWh.
It should be emphasised that none of these costs are the full cost recovery. For example in the British case it is estimated that some $10 bn has been spent by others on upgrading the grid and backup power supplies. In Turkey the cost of the plant is just that, and doesn’t include civil works, grid connections, cooling water supply.
In the US plant Vogtle has benefited from some US$8bn of federal government loan guarantees and an unusual form of financing where customers have paid about 8% premium on their bills for 10-12 years before the plant is to be commissioned.
All of the plants get catastrophe insurance and some security from their government and most have inadequate bond structures for long term waste storage. They also rarely pay for cooling water. Many have preferential supply agreements which will require other cheaper sources of power to turn off to allow the nuclear plants to keep running.
However, even on the published information, nuclear power plants in democracies are running at about A$13m/MW………
“…..Cooling Water
A key issue with nuclear plants is cooling. Because of the cost of shutdowns and the degradation of materials by irradiation, the plants are designed to run at lower peak temperatures (260-320 C) than coal (500-670 C), gas turbines (1,300-1430C) or internal combustion plants (2,000 C).
The thermal efficiency of a plant is directly related to the difference between the peak temperature and the cooling medium – what is termed Carnot efficiency.
Lower temperature means lower efficiency, as less of the heat energy is converted into work and more is removed by the cooling system. So for a given amount of electrical energy delivered, more cooling is required in a nuclear plant. Furthermore the warmer the cooling water or air the more coolant is required.
Thus the Barrakah plants require 100 tonnes of Gulf seawater per second for each generator. In higher latitudes with seawater temperatures in the range of 2-12C, water requirements can still be 40-60 tonnes per second per GW…….
It is enough to change the local environment for all sea life, so finding a suitabable site is very difficult. There are currently no nuclear plants operating using warm seawater for cooling although Barrakah is soon to be commissioned.
The problem there is not just the temperature but the accelerated rates of corrosion and biofouling which will mean the heat exchangers need to be larger, pumping losses will be higher and maintenance bills higher still…..
On land in very cold climates, a small number of air cooled plants have been built but the offset is that about 5% of the output of the power plant is used to run the fans. However in warm climates it is virtually impossible to run an air cooled nuclear power plant……
A closer look at Barrakah
There are a range of risks with all nuclear designs, but the business risks assoctiated with the Barrakah style APR 1400 seem even larger than most.
The Barrakah plants were supposed to progressively come on line in early 2017 but they have yet to generate power. This delay is adding US$1.2-2 bn per year to the eventual liabilities that have to be paid off.
They are designed for an 18 month refueling cycle – unlike the AP1000 at plant Vogtle which has a 3 year refueling cycle. This means lower lifetime capacity factors and higher backup requirements with gas or pumped hydro. The design goal is 90% availability.
They have largely been built with very low finance costs from both Korea and the Emirates together with cheap expat Indian and Pakistani labour which significantly understates their real cost of construction.
The Barrakah plant is a 4 unit plant, which allows useful economies of scale, and there is nowhere in Australia where a 4 unit plant can safely be intergrated into the grid.
Recent problems with the single unit 750MW Kogan Creek generator in Queensland have shown that the grid can be destabilised with the failure of a single unit. As demand is gradually falling, a single unit of that magnitude is even harder to manage. The APR 1400 units are 1,350-1,400 MW so would be even more difficult to integrate into the grid.
These reactors have not yet been shown to work in a hot environment so their reliability is unknown, in fact there is only one other reactor of this type operating in the world with two more under construction.
The Moorside project in the UK which was to use KEPCO designs has been abandoned and plans for two more units in Korea have been frozen. KEPCO was offered all the development work already done on the Oldbury and Wyfla plants in the UK and did not take them up.
These plants came with billions of pounds worth of development work already done, project teams and permits in place and an offer from the UK government of a guaranteed ₤75/MWh + inflation for 25+ years.
There is a reasonably held belief that the price was artificially supported by the previous Korean government which viewed nuclear technology as a new export industry and this project as a flagship demonstrator. In contrast the current Korean government was elected on an anti-nuclear program and has pledged to build no more plants after the current two units under construction are completed.
There are some doubts about the level of safety in the design and a new design, APR1400+ was developed to reduce the possibility of a melt down. However no plants of this design have been ordered. So which one would you choose? https://www.openforum.com.au/nuclear-cost-and-water-consumption-the-elephants-in-the-control-room/?fbclid=IwAR2M3NxMjfrDJNWTG9tatKSARHGUKWVcG_CE-bSW5wtnAbwhGnYxd1ElugU
Goats irradiated in 1950s now pose possible environmental danger in Berkshire, UK
Contamination in Berkshire, Berkshire Live 21st Dec 2019, Goats injected with radioactive chemicals could be buried in Berkshire. The
animals, said to have been experimented on in the 1950s and 60s, could now
be buried on land in Shinfield.
Those living nearby have raised concerns
after learning scientists at the University of Reading injected the goats
with radioactive isotopes. The experiments were said to have been looking
into how radiation affected milk and metabolism.
It formed part of research
into milk production and the dairy industry, by The National Institute for
Research in Dairying (NIRD), based in Shinfield and closed in 1985. The
goats were apparently ‘famous in folklore’, according to one American
professor, Margaret Neville. Burying dead livestock is now banned to stop
the spread of disease. But before the 2003 ban, farmers would reportedly
often bury dead animals in pits on their own land.
U.S. Congress Demands Investigation Into the U.S.’s Nuclear Coffin, The Runit Dome
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Congress Demands Investigation Into the U.S.’s Nuclear Coffin, The Runit Dome is leaking radioactive waste into the Pacific Ocean. https://www.popularmechanics.com/military/weapons/a30338371/congress-investigation-runit-dome-nuclear-waste/
Dec 27, 2019
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Seafloor mapping reveals the degradation of ocean floor by Bikini nuclear bomb tests
Bikini Seafloor Hides Evidence of Nuclear Explosions, Seafloor mapping has revealed a crater and several shipwrecks persisting 73 years after the world’s first underwater nuclear test. Eos, Amanda Heidt 28 Dec 19
Seventy-three years after serving as the site of the world’s first underwater nuclear test, the seafloor around the Bikini Atoll remains scarred by finely detailed craters and littered with derelict ships.
Today, an interdisciplinary team of scientists is using sonar to assess the complex submarine environment. The results provide a sobering assessment of humanity’s capacity to alter nature…..
Unleashing the Power of the Atom
In the aftermath of World War II, the U.S. Navy chose the Bikini Atoll for a series of controlled nuclear explosions. Between 1946 and 1958, 23 confirmed tests were conducted throughout the area.
Trembanis and his team studied Able and Baker, a pair of tests conducted in July 1946 as part of Operation Crossroads. Both Able and Baker involved plutonium fission bombs with a yield of between 21 and 23 kilotons, but they were deployed differently……….
Clustering around a laptop, Trembanis and his team witnessed the real-time rendering of an underwater crater more than 800 meters across—big enough to fit three Roman Colosseums. ….
Littered throughout the atoll are the husks of strategically placed ships—decommissioned dreadnaughts, aircraft carriers, and submarines meant to bear the brunt of the Able and Baker explosions. …..
Even independent of their place in nuclear history, the Pilotfish and other Bikini shipwrecks attest to the long-lived effects of human activities on the environment.
As old ships decompose, they become ecological burdens, and researchers found that several wrecks on the Bikini seafloor are leaching plumes of oil. Trembanis and his team looked at sketches from surveys the National Park Service conducted in the late 1980s and saw the degradation of the past 40 years……. https://eos.org/articles/bikini-seafloor-hides-evidence-of-nuclear-explosions
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