Archive for the ‘Environment’ Category
Controversy has erupted over new French scientific research claiming that genetically modified corn and the herbicide Roundup increases the chance of lab rats developing tumours and dying prematurely.
By John Vidal, Guardian UK 29 September 2012
Trial suggesting a GM maize strain causes cancer has attracted a torrent of abuse, but it cannot be swept under the carpet
Professor Gilles-Eric Séralini, professor of molecular biology at Caen university in France, knows how to inflame the GM industry and its friends. For seven years he and his team have questioned the safety standards applied to varieties of GM maize and tried to re-analyse industry-funded studies presented to governments.
The GM industry has traditionally reacted furiously and personally. Séralini has been widely insulted and smeared and last year, in some desperation, he sued Marc Fellous, president of the French Association of Plant Biotechnology, for defamation, and won (although he was only awarded a nominal €1 in damages).
But last week, Seralini brought the whole scientific and corporate establishment crashing down on his head. In a peer-reviewed US journal, Food and Chemical Toxicology, he reported the results of a €3.2m study. Fed a diet of Monsanto’s Roundup-tolerant GM maize NK603 for two years, or exposed to Roundup over the same period, rats developed higher levels of cancers and died earlier than controls. Séralini suggested that the results could be explained by the endocrine-disrupting effects of Roundup, and overexpression of the transgene in the GMO.
This was scientific dynamite. It was the first time that maize containing these specific genes had been tested on rats over two years – nearly their full lifespan – as opposed to the 90-day trials demanded by regulators. Around a dozen long-term studies of different GM crops have failed to find similar effects. Séralini’s study also looked at the toxicity of the Roundup herbicide when fed directly to rats.
Institute for Responsible Technology December, 2011
Genetically modified foods…….. Are they safe?
The American Academy of Environmental Medicine (AAEM) doesn’t think so. The Academy reported that “Several animal studies indicate serious health risks associated with GM food,” including infertility, immune problems, accelerated aging, faulty insulin regulation, and changes in major organs and the gastrointestinal system. The AAEM asked physicians to advise patients to avoid GM foods.
Before the FDA decided to allow GMOs into food without labeling, FDA scientists had repeatedly warned that GM foods can create unpredictable, hard-to-detect side effects, including allergies, toxins, new diseases, and nutritional problems. They urged long-term safety studies, but were ignored.
Since then, findings include:
- Thousands of sheep, buffalo, and goats in India died after grazing on Bt cotton plants
- Mice eating GM corn for the long term had fewer, and smaller, babies
- More than half the babies of mother rats fed GM soy died within three weeks, and were smaller
- Testicle cells of mice and rats on a GM soy change significantly
- By the third generation, most GM soy-fed hamsters lost the ability to have babies
- Rodents fed GM corn and soy showed immune system responses and signs of toxicity
- Cooked GM soy contains as much as 7-times the amount of a known soy allergen
- Soy allergies skyrocketed by 50% in the UK, soon after GM soy was introduced
- The stomach lining of rats fed GM potatoes showed excessive cell growth, a condition that may lead to cancer.
- Studies showed organ lesions, altered liver and pancreas cells, changed enzyme levels, etc.
Unlike safety evaluations for drugs, there are no human clinical trials of GM foods. The only published human feeding experiment revealed that the genetic material inserted into GM soy transfers into bacteria living inside our intestines and continues to function. This means that long after we stop eating GM foods, we may still have their GM proteins produced continuously inside us. This could mean: Read the rest of this entry »
In a Nutshell
An emerging scientific consensus that a shift to small scale sustainable agriculture and localized food systems will address most, if not all the underlying causes of deteriorating agricultural productivity as well as the conservation of natural soil and water resources while saving the climate
To substantially improve living standards, access to modern energy is also crucial. Small agro-ecological farms are known to be highly productive, and are ideally served by new renewable energies that can be generated and used on site, and in off-grid situations most often encountered in developing countries
A model that explicitly integrates sustainable farming and renewable energies in a circular economy patterned after nature could compensate, in the best case scenario, for the carbon emissions and energy consumption of the entire nation while revitalising and stimulating local economies and employment opportunities
Food crisis, global economic instability, and political unrest
Soaring food prices were a major trigger for the riots that destabilized North Africa and the Middle East, and have since spread to many other African countries [1, 2]. The UN Food Price Index hit its all-time high in February 2011, and the May 2011 average was 37 percent above a year ago . This is happening as the global economy is still staggering from the 2008 financial (and food) crisis, with public debt expanding and unemployment sky high .
Lester Brown, venerated veteran world-watcher, says food has quickly become the hidden driver of world politics , and food crises are going to become increasingly common. “Scarcity is the new norm.” The world is facing increasing demand for food as population increases while food crops and land are being diverted to produce biofuels; in 2010, the United States alone turned 126 million tons of its 400 million tons corn harvest into ethanol. At the same time, the world’s ability to produce food is diminishing. Aquifers are running dry in the major food producing countries where half of the world population live. There is widespread soil erosion and desertification; and global warming temperatures and weather extremes are already reducing crop yields [6-9], hitting the most vulnerable people in sub-Saharan Africa and south Asia the hardest.
“We are now so close to the edge that a breakdown in the food system could come at any time.” Brown warns . “At issue now is whether the world can go beyond focusing on the symptoms of the deteriorating food situation and instead attack the underlying causes. If we cannot produce higher crop yields with less water and conserve fertile soils, many agricultural areas will cease to be viable…..If we cannot move at wartime speed to stabilize the climate, we may not be able to avoid runaway food prices….The time to act is now — before the food crisis of 2011 becomes the new normal.”
Post Carbon Institute June, 2011
Last weekend, the New York Times published a series of articles that — through leaks from EIA officials and natural gas industry insiders — corroborated the findings of our landmark report, Will Natural Gas Fuel America in the 21st Century?: Don’t believe the hype about plentiful U.S. natural gas supplies.
Of course, the controversy over natural gas is far from over, and PCI continues to provide energy realism and literacy to the debate. This week, PCI Fellow David Hughes published an analysis of two contradictory studies assessing the greenhouse gas emissions of shale gas vs. coal. The conclusion? Shale gas is worse for the climate over a 30-50 year timeframe.
From hot air to deflating (economic) balloons… We were blown away to receive nearly 600 orders in the span of 12 hours for Senior Fellow Richard Heinberg’s newest book, The End of Growth: Adapting to Our New Economic Reality. In the video above, Richard Heinberg, author of “The Party’s Over” and leading peak oil educator, talks about the future of our ‘growth’ society.