Thursday, June 11, 2009

The Danger of BPA in Our Bodies!!!


WASHINGTON (Reuters) - Hormone experts said on Wednesday they are becoming worried by a chemical called bisphenol A, which some politicians say they want taken out of products and which consumers are increasingly shunning.

They said they have gathered a growing body evidence to show the compound, also known as BPA, might damage human health. The Endocrine Society issued a scientific statement on Wednesday calling for better studies into its effects.

Studies presented at the group's annual meeting show BPA can affect the hearts of women, can permanently damage the DNA of mice, and appear to be pouring into the human body from a variety of unknown sources.

BPA, used to stiffen plastic bottles, line cans and make smooth paper receipts, belongs to a broad class of compounds called endocrine disruptors.

The U.S. Food and Drug Administration is examining their safety but there has not been much evidence to show that they are any threat to human health.
"We present evidence that endocrine disruptors do have effects on male and female development, prostate cancer, thyroid disease, cardiovascular disease," Dr. Robert Carey of the University of Virginia, who is president of the Endocrine Society, told a news conference.

The society issued a lengthy scientific statement about the chemicals in general that admits the evidence is not yet overwhelming, but is worrying.

Dr. Hugh Taylor of Yale University in Connecticut found evidence in mice that the compounds could affect unborn pups.
"We exposed some mice to bisphenol A and then we looked at their offspring," Taylor told the news conference.

"We found that even when a they had a brief exposure during pregnancy ... mice exposed to these chemicals as a fetus carried these changes throughout their lives."

The BPA did not directly change DNA through mutations, but rather through a process called epigenetics -- when chemicals attach to the DNA and change its function.
WIDESPREAD EXPOSURE

Taylor noted studies have shown that most people have some BPA in their blood, although the effects of these levels are not clear.

Dr. Frederick Vom Saal of the University of Missouri, who has long studied endocrine disruptors, said tests on monkeys showed the body quickly clears BPA -- which may at first sound reassuring.

But he said when tests show most people have high levels, this suggests they are being repeatedly exposed to BPA.

"We are really concerned that there is a very large amount of bisphenol A that must be coming from other sources," Vom Saal said.

Dr. Scott Belcher of the University of Cincinnati in Ohio and colleagues will tell the meeting they found BPA could affect the heart cells of female mice, sending them into an uneven beating pattern called an arrhythmia.

"These effects are specific on the female heart. The male heart does not respond in this way and we understand why," Belcher said. He said BPA interacts with estrogen and said the findings may help explain why young women are more likely to die when they have a heart attack than men of the same age.

U.S. government toxicologists at the National Institute of Environmental Health Sciences expressed concern last year that BPA may hurt development of the prostate and brain.

A 2008 study by British researchers linked high levels of BPA to heart disease, diabetes and liver-enzyme abnormalities.

(Editing by Eric Walsh)

Additional Facts on BPA

--Bisphenol A (BPA) is one of the most widely used industrial chemicals with about 7 billion pounds produced annually.
--BPA is a chemical that mimics the female sex hormone estrogen.
--BPA is always found in polycarbonate plastic (#7)
--5 gallon water bottles, baby bottles, sports bottles and microwave cookware are made of polycarbonate and contain BPA.
--Many food and beverage cans have a plastic lining made from BPA.
--BPA gets into food and beverages stored in these containers and then makes its way into the human body.
--BPA is found in the bodies of nearly everyone tested for it in the USA.
--As of 2005, there have been 115 published studies examining low doses of the chemical and 94 of them found harmful effects from BPA.
--Animal studies link BPA to breast and prostate cancer, obesity and diabetes, hyperactivity, female reproductive disorders and early onset of puberty, impaired brain development and permanent genetic changes.
--Levels of BPA in humans are higher than levels found to cause harm in animals.
--Fetuses and infants are most vulnerable to the chemical's effects.

The safest way you can eliminate BPA from your life is to purchase glass bottles and containers. Carry a glass water bottle instead of a plastic one.

Glass is also reusable, easy to clean and easy to recycle. It will also save you money in the long run if you fill your own glass bottles with water rather than purchasing thousands of water bottles over your lifetime.

Do not eat or drink from any plastic containers that have been exposed to high heat, such as a water bottle left in the car. The heat increases leaching of the BPA and other compounds from the plastic into the water and food. Ever wonder what that plasticy taste is in your water? Now you know. Drink safe.

SAN FRANCISCO (Reuters) - The head of oil company Chevron Corp said efforts to cut U.S. carbon emissions by 80 percent by 2050 were unrealistic because so much current energy infrastructure would have to be replaced.

Highlighting the scale of the task, CEO David O'Reilly said making every U.S. vehicle carbon free would only cut out 34 percent of greenhouse gases, while a completely zero-emission power generation system would only eliminate 40 percent.
"We'll be lucky if we can get 20 percent or 25 percent by 2050," O'Reilly said in a largely cordial debate on Wednesday night with Carl Pope, executive director of environmental group Sierra Club. "I hope I'm wrong about it, but I'm just looking at capital stock turnover."

O'Reilly cited the small fraction of hybrid cars on the road, after years of investment, as an indication of how long it would take to change. But Pope, pulling a cell phone out of his pocket, argued technology could drive change faster than people often believed.

Pope, who has held his position at the San Francisco-based environmental group since 1992, pointed to California's reduction of electricity use by half between 1973 and 2003 as an example.

O'Reilly, who has run San Ramon, California-based Chevron for nearly a decade, applauded the achievement, but said the wider transition of heavy industry to other states and countries meant much of the usage had simply moved elsewhere.
"You just can't draw a circle around the state of California and draw that conclusion without looking at the total load," O'Reilly said.

Both men agreed that moving away from coal toward natural gas in power plants would be one of the quickest ways to reduce carbon output, and promised to talk privately about potentially lobbying together in Washington D.C. about a perceived congressional bias toward coal.

Pope was particularly critical of the current climate bill in Congress for not making coal share more of the burden.
"The coal industry sent oil and gas its share of the dinner bill," he said, though he later added that he wanted the bill to move forward through Congress so it could be improved.

In the debate hosted by the Commonwealth Club, a San Francisco-based public affairs forum, both men agreed that a carbon tax was a far simpler way of reducing consumption, with O'Reilly calling the legislation "unnecessarily complex."

"When people see complexity, when they look at what happened in the financial system with all the complexities that developed there, I think they get distrustful," O'Reilly said.

Pope criticized U.S. energy regulation for not forcing utilities to buy more low-carbon electricity.
"Well, if you can get the government to move faster, then good luck," O'Reilly said.

Pope replied, to applause: "It would help if you would get out of the way."

After a brief discussion of a $27 billion pollution case Chevron is fighting in Ecuador, which has received much attention in recent months, a handful of audience members wearing shirts that said 'Chevron's $27 billion secret in Ecuador' stood up in protest.

"It's not a secret," O'Reilly said.

Good one, O'Reilly. Chevron would do right and replace this guy with someone a little more pro-active and educated in the Green Movement.

(Reporting by Braden Reddall; editing by Simon Jessop)
Wednesday, June 10, 2009

Did You Know...?


Bamboo is the greenest building material on the planet! Because it grows so quickly, fully maturing in 4 years (trees take upwards of 35 years to mature!) and growing to heights of more than 60ft and sometimes growing more than 3ft in one day, bamboo is truly the best material to build new homes and buildings with.

Bamboo is also incredibly durable and strong, besting some steel alloys! Harvesting bamboo allows the root system to stay in tact so that there is no soil erosion or degradation of the land, unlike harvesting trees.

Bamboo also makes a fantastic fiber for clothing and bedding. It is naturally antibacterial and antifungal! It keeps you 2-3 degrees cooler in the heat and 2-3 degrees warmer in the cold. The natural make up of the bamboo makes it naturally waterproof and makes it softer than the softest cotton available. It may also give a light sheen effect.

There are over 100 bamboo products on the market today! Try something bamboo next time you need something new in your kitchen, bedroom or wardrobe!

NEW YORK (Reuters) - The United States should pass a comprehensive energy plan to ensure the number of jobs in environmental fields, such as renewable energy and cutting air pollution, will keep rising as they did in the decade to 2007, a Pew report said on Wednesday.

U.S. clean economy jobs grew at rate of 9.1 percent from 1998 to 2007 to 770,385, faster than overall jobs during the decade, said the Pew Charitable Trusts study, which aims to set a baseline to judge how well public policies and investments foster green jobs in the future. In contrast, the traditional energy economy of oil, natural gas, and coal employed about 1.2 million workers in 2007.
"We do believe our report points to trends that show a very promising future for the clean energy economy," Lori Grange, an expert on state policies at the Pew Charitable Trusts, told reporters in a teleconference.

"This sector is poised for explosive growth."

President Barack Obama has said he wants to create millions of "green collar" jobs.

In order to create that work force, more and wider policies are needed, according to the report.

WIDER PLAN

"The (U.S. stimulus bill) has made important investments in spurring economic recovery and protecting the environment," said Phyllis Cuttino, the director of the U.S. global warming campaign at the Pew environment group.

Despite the recession, innovation in the clean economy should continue to rise due to venture capital investments, the cost of fossil fuels, and state and federal policies such as the stimulus bill, the report said.
"But it has to be paired with additional federal policies that support and speed the transition to a clean energy economy. To do so, Congress and the Obama administration must work together to pass comprehensive global warming and energy legislation," Cuttino said.

Obama's stimulus bill included more than $60 billion for clean energy, including $11 billion to modernize the power grid to move energy from renewable energy projects to the cities and $2 billion in grants to develop better batteries for cars.

Obama also supports a comprehensive federal energy plan that would launch a "cap and trade" market on greenhouse gases and national mandates that would force power companies to generate a portion of their electricity from renewable sources such as wind and solar power. An energy bill that would create such a market and mandates is working its way through the House of Representatives, but its future in the Senate is uncertain.

The report showed that states that were early leaders in forming so-called "renewable portfolio standards" that require generation from renewables have also been some of the best in drawing green jobs.

California led the country in the number of clean economy jobs in 2007 with more than 125,000 workers. Texas had nearly 56,000 such workers that year and Pennsylvania had nearly 39,000.

(Reporting by Timothy Gardner; Editing by Marguerita Choy)

Carbon Dioxide (C02) is the known culprit in Global Warming. In case you may not fully understand why this invisible gas is to blame, this article helps to explain it all.