The Precautionary Principle was hammered out at the historic Wisconsin Wingspread conference in 1998 by scientists, researchers, and citizens. The principle is grounded in the simple belief that we should not wait to protect ourselves or the environment until we have absolute proof that certain products or activities can cause us harm.

To the contrary, the principle declares: “When an activity raises threats of harm to human health or the environment, precautionary measures should be taken, even if some cause-and-effect relationships are not fully established scientifically.”

Industries use scientific uncertainty as a way to avoid cleaning up their act. Companies often magnify the importance of uncertainty to persuade citizens, legislators, and regulators that they, too, should delay action. Think how much farther along we’d be at solving the climate change crisis if the energy industry hadn’t fought every proposed carbon dioxide regulation with the cry, “There’s not enough proof that CO2 causes global warming!”

At the same time, budget crunches and competing priorities mean that important studies that could document environmental impacts often are shunted aside. Ironically, the longer we wait to address a problem, the greater the costs become – to the environment, to our health, and to the economy.

The Precautionary Principle has four tenets.

1) We — consumers, governments, manufacturers — have a duty to respond to early warnings. We must act before harm occurs, not after the fact. We don’t wait for our child to get hit by a car to tell her to look both ways when crossing the street. People shouldn’t need to contract cancer or asthma to get access to safe ingredients, or for companies to remove products like Bisphenol-A from baby bottles or control the air pollution coming out of cars.

2) Consumers should not bear the “burden of proof.” Under our current system, you and I and, essentially, our environment, have to prove that we’ve been harmed before the government is willing to intercede on our behalf and before industry is willing to change the way it does business.  Under the Precautionary Principle, manufacturers would need to demonstrate safety.

Can this approach work for industry? It’s taken hold in Europe. Starting with chemicals already known to cause cancer and birth defects, cosmetics companies are being required to reformulate their products to contain safer ingredients. Here in the U.S., the nonprofit Campaign for Safe Cosmetics is urging manufacturers to follow suit. Putting the burden of proof not on you and me but on producers should become the law of the land.

3) It is our responsibility to explore alternatives to toxic substances and activities. What good does it do us to know, or even suspect, something will harm us if we don’t choose a safer alternative? Increasingly, we have real choice in the marketplace: more organic foods, more fuel-efficient vehicles, more recycled products, less plastic, less stuff overall. When we opt for the most environmenally friendly products and services available, we provide powerful incentives to manufacturers to shape up..

4) The Precautionary Principle requires democratic participation. Companies should not be allowed to decide our fate in their corporate board rooms. It’s up to us to provide guidance as well as accountability by participating in public hearings, writing letters to companies, voting on ballot initiatives, electing responsive public officials, and, of course, using our Big Green Purse in the marketplace to favor products that offer us the healthiest, safest options.

In fact, often, our first line of defense is the way we spend our money — or choose to keep it in our pockets. If you’re stymied by all the confusing green labels, start with products that meet independent standards for health and environmental sustainability. For suggestions of products to avoid and choices to make, read this month’s Green Mom’s Carnival on the relationship between the environment and cancer, hosted by Tiffany at NatureMoms.

(photo credit)

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“Ever since the publication of my book,  The Body Toxic: How the Hazardous Chemistry of Everyday Things Threatens Our Health and Well-being, people ask me what I’ve done in my own life to reduce exposures to toxic chemicals.

One answer is: I vacuum a lot more. And one family of toxic chemicals is the reason for it. Called polybrominated diphyl ethers, or PBDEs, these toxic flame retardants were – beginning in the 1970s — added to everything from furniture foam, mattresses, carpet padding and drapery backings, to car interiors, computers, TVs, fax machines and small kitchen appliances.

Because of the way PBDEs were blended into foam and plastic – think of a baker stirring chocolate chips into cookie dough – they can easily escape from the materials into which they are mixed. As a result, PBDEs settle in the dust on the floors of our homes, where children and pets spend most of their time. Indeed, researchers believe dust is the primary route of human exposure to PBDEs.

Based on the findings in animal studies, the EPA classifies PBDEs as a possible human carcinogen. Like other endocrine-disrupting chemicals I write about in The Body Toxic, PBDEs also are suspected of causing an array of negative health effects, including thyroid hormone disruption and permanent learning and memory impairment.

Because of their widespread use, PBDEs have built up at astonishing rates in the environment and in people. No one can say for certain how PBDEs are affecting humans, young or old. But research led by Dr. Linda Birnbaum, who was recently appointed director of the National Institute of Environmental Health Sciences, makes the case that house cats may be sentinels for humans, especially the littlest ones.

“Think about a cat’s behavior,” said Birnbaum. “They’re on the floor; they’re on the furniture. They get dust on themselves. They ingest it through grooming. Well, little kids are all over the floor and furniture, and they’re frequently mouthing things, including their hands.”

Read Part 2 of this article.

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