Showing posts with label Renewables. Show all posts
Showing posts with label Renewables. Show all posts

16 January 2012

Hell’s Boilers : It’s time to banish the belief that N-power is clean, green and safe

Fissile Argument
  • The N-industry calls nuclear energy “clean and green”
  • Being taken in by this poses a global danger—to ecology, health, and economies
  • Money would be better spent on R&D in renewable energy
***

The nuclear power industry has been resurrected over the past decade by a lobbying campaign that has left many people believing it to be a clean, green, emission-free alternative to fossil fuels. These beliefs pose an extraordinary threat to global public health and encourage a major financial drain on national economies and taxpayers. The commitment to nuclear power as an environmentally safe energy source has also stifled the mass development of alternative technologies that are far cheaper, safer and almost emission-free—the future for global energy.

When the Fukushima Daiichi reactors suffered meltdowns in March, literally in the backyard of an unsuspecting public, the stark reality that the risks of nuclear power far outweigh any benefits should have become clear to the world. As the old quip goes, “Nuclear power is one hell of a way to boil water.”
Instead, the nuclear industry has used the disaster to increase its already extensive lobbying efforts. A few nations vowed to phase out nuclear energy after the disaster. But many others have remained steadfast in their commitment to using nuclear power.

That has left millions of innocent people unaware that they—all of us—may face a medical catastrophe beyond all proportions in the wake of Fukushima through the continued widespread use of nuclear energy.

The world was warned of the dangers of nuclear accidents 25 years ago, when Chernobyl exploded and lofted radioactive poisons into the atmosphere. Those poisons “rained out”, creating hot spots over the northern hemisphere. Research by scientists in eastern Europe, collected and published by the New York Academy of Sciences, estimates that 40 per cent of the European landmass is now contaminated with caesium-137 and other radioactive poisons that will concentrate in food for hundreds to thousands of years.

Wide areas of Asia—from Turkey to China—the United Arab Emirates, north Africa and north America are also contaminated. Nearly 200 million people remain exposed.

That research estimated that by now close to a million people have died of causes linked to the Chernobyl disaster. They perished from cancers, congenital deformities, immune deficiencies, infections, cardiovascular diseases, endocrine abnormalities and radiation-induced factors that increased infant mortality. Studies in Belarus found that in 2000, 14 years after the Chernobyl disaster, fewer than 20 per cent of the children were considered “practically healthy”, compared to 90 per cent before Chernobyl.

Now, Fukushima has been called the second-worst nuclear disaster after Chernobyl. Much is still uncertain about the long-term consequences of this disaster. Fukushima may well be on par with or even far exceed Chernobyl in terms of the effects on public health, as new information becomes available. The crisis is ongoing; the plant remains unstable and radiation emissions continue into the air and water.

Recent monitoring by citizens’ groups, international organisations and the US government have found dangerous hotspots in Tokyo and other areas. The Japanese government, meanwhile, in late September lifted evacuation advisories for some areas near the damaged plant—even though high levels of radiation remained. The government estimated that it will spend at least $13 billion to clean up contamination.

 
Illustration by Leandro Lima
Many thousands of people continue to inhabit areas that are highly contaminated, particularly northwest of Fukushima. Radioactive elements have been deposited throughout northern Japan, found in tap water in Tokyo and concentrated in tea, beef, rice and other food. In one of the few studies on human contamination in the months following the accident, over half the more than 1,000 children whose thyroids were monitored in Fukushima city were found to be contaminated with iodine-131—this means many of them are condemned to thyroid cancer years from now. Children are innately sensitive to the carcinogenic effects of radiation, foetuses even more so.

Like the Chernobyl meltdown, the accident at Fukushima, too, is of global proportions.



True green and clean solutions for providing energy do exist. They lie in a combination of conservation and using renewable sources through smart-grids.

Unusual levels of radiation have been discovered in British Columbia, along the west and east coasts of the US and in Europe, and heavy contamination has been found in oceanic waters.

Fukushima is classified as a Grade-7 accident on the International Atomic Energy Agency scale, denoting “widespread health and environmental effects”. That is the same severity as Chernobyl, the only other Grade-7 accident in history, but such disaster measurement is hazy: there is no higher number on the agency’s scale.

After the accident, lobbying groups touted improved safety at nuclear installations globally. In Japan, the Tokyo Electric Power Co, which operates the Fukushima Daiichi reactors, and the government have sought to control the reporting of negative stories via telecom companies and internet service providers.

In Britain, The Guardian reported that days after the tsunami, companies with interests in nuclear power—Areva, EDF Energy and Westinghouse—worked with the government to downplay the accident, fearing setbacks on plans for new nuclear power plants.

Nuclear power has always been the nefarious Trojan horse for the weapons industry, and effective publicity campaigns are a hallmark of both industries. The concept of nuclear electricity was conceived in the early 1950s as a way to make the public more comfortable with the US development of nuclear weapons. “The atomic bomb will be accepted far more readily if at the same time atomic energy is being used for constructive ends,” a consultant to the Defense Department Psychological Strategy Board, Stefan Possony, suggested.

The phrase ‘Atoms for Peace’ was popularised by President Dwight Eisenhower in the early 1950s.

Nuclear power and nuclear weapons are one and the same technology. A 1,000-MW nuclear reactor generates 600 pounds or so of plutonium per year: an atomic bomb requires a fraction of that amount for fuel, and plutonium remains radioactive for 2,50,000 years. Therefore, every country with a nuclear power plant also has a bomb factory with unlimited potential.

The nuclear power industry sets an unforgivable precedent by exporting nuclear technology—bomb factories—to dozens of non-nuclear nations.

Why is nuclear power still viable, after we’ve witnessed catastrophic accidents, enormous financial outlays, weapons proliferation and nuclear-waste-induced epidemics of cancers and genetic disease for generations to come? Simply put, many government and other officials believe the nuclear industry mantra: safe, clean and green. And the public is not educated on the issue.

There are some signs of change. Germany will phase out nuclear power by 2022. Italy and Switzerland have decided against it, and anti-nuclear advocates in Japan have gained traction. China remains cautious on nuclear power. Yet the nuclear enthusiasm of the United States, Britain, Russia and Canada continues unabated. The industry, meanwhile, has promoted new modular and ‘advanced’ reactors as better alternatives to traditional reactors. They are, however, subject to the very same risks—accidents, terrorist attacks, human error—as the traditional reactors. Many also create fissile material for bombs as well as the legacy of radioactive waste.

True green, clean, nearly emission-free solutions exist for providing energy. They lie in a combination of conservation and renewable energy sources—mainly wind, solar and geothermal, hydropower plants and biomass from algae. A smart-grid could make possible the integration of consuming and producing devices, allowing flexible operation of household appliances. The problem of intermittent power can be solved by storing energy using available technologies.

Millions of jobs can be created by replacing nuclear power with nationally integrated, renewable energy systems. In the United States alone, this project could be paid for by the $180 billion currently allocated for nuclear weapons programmes over the next decade. In fact, there would be no need for new weapons if the Russian and American nuclear arsenals—95 per cent of the estimated 20,500 nuclear weapons globally—are abolished.

Advocates of nuclear energy often paint those who oppose them as Luddites who are afraid of, or do not understand, modern technology, or as hysterics who disproportionately exaggerate the dangers of nuclear power. One might recall the sustained attack over many decades by the tobacco industry upon the medical profession—a profession that revealed the grave health dangers induced by smoking. Smoking, broadly speaking, only kills the smoker, active or passive. Nuclear power bequeaths morbidity and mortality—epidemics of disease—to all future generations. The millions of lives lost to smoking in the era before the health risks of cigarettes were widely exposed will be minuscule compared to the medical catastrophe we face through the continued use of nuclear power.

Let’s use this extraordinary moment to convince governments and others to move toward a nuclear-free world. Let’s prove that informed democracies will behave in a responsible fashion.

-Dr. Helen Caldicott

(Helen Caldicott, Paediatrician, founder-president, Physicians for Social Responsibility, anti-nuclear activist)

Courtesy: Outlook Magazine, Jan 02, 2012

21 May 2011

Renewables can power the world, says IPCC


The Intergovernmental Panel on Climate Change, the body of the world's leading climate scientists convened by the United Nations, said that if the full range of renewable technologies were deployed, the world could keep greenhouse gas concentrations to less than 450 parts per million, the level scientists have predicted will be the limit of safety beyond which climate change becomes catastrophic and irreversible.

Investing in renewables to the extent needed would cost only about 1 per cent of global GDP annually, said Rajendra Pachauri, chairman of the IPCC.

Renewable energy is already growing fast — of the 300 gigawatts of new electricity generation capacity added globally between 2008 and 2009, about 140GW came from renewable sources, such as wind and solar power, according to the report.

The investment that will be needed to meet the greenhouse gas emissions targets demanded by scientists is likely to amount to about $5trn in the next decade, rising to $7trn from 2021 to 2030.

Public policies

Ramon Pichs, co-chair of one of the key IPCC working groups, said: “The report shows that it is not the availability of [renewable] resources but the public policies that will either expand or constrain renewable energy development over the coming decades.

Developing countries have an important stake in the future — this is where most of the 1.4 billion people without access to electricity live yet also where some of the best conditions exist for renewable energy deployment.”

Sven Teske, renewable energy director at Greenpeace International, and a lead author of the report, said: “This is an invitation to governments to initiate a radical overhaul of their policies and place renewable energy centre stage.

On the run up to the next major climate conference, COP17 in South Africa in December, the onus is clearly on governments to step up to the mark.”

He added: “The IPCC report shows overwhelming scientific evidence that renewable energy can also meet the growing demand of developing countries, where over 2 billion people lack access to basic energy services and can do so at a more cost-competitive and faster rate than conventional energy sources.

Governments have to kick start the energy revolution by implementing renewable energy laws across the globe.” The 1,000—page Special Report on Renewable Energy Sources and Climate Change Mitigation (SRREN) marks the first time the IPCC has examined low—carbon energy in depth, and the first interim report since the body's comprehensive 2007 review of the science of climate change.

Although the authors are optimistic about the future of renewable energy, they note that many forms of the technology are still more expensive than fossil fuels, and find that the production of renewable energy will have to increase by as much as 20 times in order to avoid dangerous levels of global warming. Renewables will play a greater role than either nuclear or carbon capture and storage by 2050, the scientists predict. Investing in renewables can also help poor countries to develop, particularly where large numbers of people lack access to an electricity grid.

About 13 per cent of the world's energy came from renewable sources in 2008, a proportion likely to have risen as countries have built up their capacity since then, with China leading the investment surge, particularly in wind energy.

But by far the greatest source of renewable energy used globally at present is burning biomass (about 10 per cent of the total global energy supply), which is problematic because it can cause deforestation, leads to deposits of soot that accelerate global warming, and cooking fires cause indoor air pollution that harms health.

There was disappointment for enthusiasts of marine energy, however, as the report found that wave and tidal power were “unlikely to significantly contribute to global energy supply before 2020”. Wind power, by contrast, met about 2 per cent of global electricity demand in 2009, and could increase to more than 20 per cent by 2050.

As with all IPCC reports, the summary for policymakers — the synopsis of the report that will be presented to governments and is likely to impact renewable energy policy — had to be agreed line by line and word by word unanimously by all countries.

This was done at Monday's meeting in Abu Dhabi. This makes the process lengthy, but means that afterwards no government or scientist represented can say that they disagree with the finished findings, which the IPCC sees as a key strength of its operations.

-FIONA HARVEY 
(The Hindu Thursday, May 12, 2011)