The environmental toll of plastics

How did our grandparents survive without it? Quite well indeed.
Made of petroleum, our food is wrapped in it, the liquids we drink are bottled in it, practically everything we use has some plastic parts, and it is not only killing the oceans it is killing us!

As reported over on Climate Progress;

"From cell phones and computers to bicycle helmets and hospital IV bags, plastic has molded society in many ways that make life both easier and safer. But the synthetic material also has left harmful imprints on the environment and perhaps human health, according to a new compilation of articles authored by scientists from around the world.

More than 60 scientists contributed to the new report, which aims to present the first comprehensive review of the impact of plastics on the environment and human health, and offer possible solutions.

“One of the most ubiquitous and long-lasting recent changes to the surface of our planet is the accumulation and fragmentation of plastics,” wrote David Barnes, a lead author and researcher for the British Antarctic Survey. The report was published this month in a theme issue of Philosophical Transactions of The Royal Society B, a scientific journal….

“Plastics are very long-lived products that could potentially have service over decades, and yet our main use of these lightweight, inexpensive materials are as single-use items that will go to the garbage dump within a year, where they’ll persist for centuries,” Richard Thompson, lead editor of the report, said in an interview.

Evidence is mounting that the chemical building blocks that make plastics so versatile are the same components that might harm people and the environment. And its production and disposal contribute to an array of environmental problems, too. For example:

• Chemicals added to plastics are absorbed by human bodies. Some of these compounds have been found to alter hormones or have other potential human health effects.
• Plastic debris, laced with chemicals and often ingested by marine animals, can injure or poison wildlife.
• Floating plastic waste, which can survive for thousands of years in water, serves as mini transportation devices for invasive species, disrupting habitats.
• Plastic buried deep in landfills can leach harmful chemicals that spread into groundwater.
• Around 4 percent of world oil production is used as a feedstock to make plastics, and a similar amount is consumed as energy in the process.

People are exposed to chemicals from plastic multiple times per day through the air, dust, water, food and use of consumer products.

For example, phthalates are used as plasticizers in the manufacture of vinyl flooring and wall coverings, food packaging and medical devices. Eight out of every ten babies, and nearly all adults, have measurable levels of phthalates in their bodies.

In addition, bisphenol A (BPA), found in polycarbonate bottles and the linings of food and beverage cans, can leach into food and drinks. The U.S. Centers for Disease Control and Prevention reported that 93 percent of people had detectable levels of BPA in their urine.

The report noted that the high exposure of premature infants in neonatal intensive care units to both BPA and phthalates is of “great concern”….

“We have animal literature, which shows direct links between exposure and adverse health outcomes, the limited human studies, and the fact that 90 to 100 percent of the population has measurable levels of these compounds in their bodies,” said John Meeker, an assistant professor of environmental health sciences at the University of Michigan School of Public Health and a lead author. “You take the whole picture and it does raise concerns, but more research is needed.”

Shanna Swan, director of the University of Rochester’s Center for Reproductive Epidemiology, conducted studies that found an association between pregnant women’s exposure to phthalates and altered genital development in their baby boys.

Also, people with the highest exposure to BPA have an increased rate of heart disease and diabetes, according to one recent study. Animal tests studies of PBDEs have revealed the potential for damaging the developing brain and the reproductive system."

The tyranny of the lawn

Just what is up with this obsession with that most unnatural of monocrop desecrations, the suburban lawn? What could be less green than a lawn? An oil refinery or chemical plant perhaps? probably but not by much as lawns are responsible for huge quantities poison being dumped on the earth and fouling our water ways. A NASCAR race track? Probably but very similar as each and every lawn seems to be responsible for an army of two stroke highly polluting machines wielded by poorly paid workers at least once/week leaving a cloud of toxic gas and many ringing ears from the cacophony.

Read more at The Future is Green about the travesty of the modern lawn.

Green Chemistry and Engineering and green coal

Check out this excellent article over on celsias about the "other" waste products coal combustion is poisoning us with.
Green Coal? | Use Celsias.com - reduce global °Celsius

Of particular interest are the 12 principles of "green chemistry" and "green engineering" posted below for you to review before reading the article by Peter Montague. Here is his introduction,

"As we search for solutions to global warming and toxic contamination, we can compare technologies, intending to select the least harmful. In recent years, scientists have developed two sets of criteria that we can use to judge the "greenness" of competing technologies. The first is called "The 12 principles of green engineering " and the second is "The 12 principles of green chemistry ."

Both sets of principles were developed by teams of technical experts and published in peer-reviewed journals. They are now widely understood and endorsed. Most importantly, they offer ordinary people, as well as experts, a way to decide which technologies are worth supporting and which ones should be phased out or never developed at all."

The 12 Principles of Green Engineering

[First published in Paul T. Anastas and J.B. Zimmerman, "Design through the Twelve Principles of Green Engineering", Environmental Science & Technology Vol. 37, No. 5 (March 1, 2003), pgs. 95A-101A .]

Principle 1: Designers need to strive to ensure that all material and energy inputs and outputs are as inherently nonhazardous as possible.

Principle 2: It is better to prevent waste than to treat or clean up waste after it is formed.

Principle 3: Separation and purification operations should be designed to minimize energy consumption and materials use.

Principle 4: Products, processes, and systems should be designed tomaximize mass, energy, space, and time efficiency.

Principle 5: Products, processes, and systems should be "output pulled" rather than "input pushed" through the use of energy and materials.

Principle 6: Embedded entropy and complexity must be viewed as an investment when making design choices on recycle, reuse, or beneficial disposition.

Principle 7: Targeted durability, not immortality, should be a design goal.

Principle 8: Design for unnecessary capacity or capability (e.g., "one size fits all") solutions should be considered a design flaw.

Principle 9: Material diversity in multicomponent products should be minimized to promote disassembly and value retention.

Principle 10: Design of products, processes, and systems must include integration and interconnectivity with available energy and materials flows.

Principle 11: Products, processes, and systems should be designed for performance in a commercial "afterlife".

Principle 12: Material and energy inputs should be renewable rather than depleting.

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The 12 Principles of Green Chemistry

[First published in Martyn Poliakoff, J. Michael Fitzpatrick, Trevor R. Farren, and Paul T. Anastas, "Green Chemistry: Science and Politics of Change," Science Vol. 297 (August 2, 2002), pgs. 807-810 .]

1. It is better to prevent waste than to treat or clean up waste after it is formed.

2. Synthetic methods should be designed to maximize the incorporation of all materials used in the process into the final product.

3. Wherever practicable, synthetic methodologies should be designed to use and generate substances that possess little or no toxicity to human health and the environment.

4. Chemical products should be designed to preserve efficacy of function while reducing toxicity.

5. The use of auxiliary substances (e.g., solvents, separation agents, and so forth) should be made unnecessary wherever possible and innocuous when used.

6. Energy requirements should be recognized for their environmental and economic impacts and should be minimized. Synthetic methods should be conducted at ambient temperature and pressure.

7. A raw material or feedstock should be renewable rather than depleting wherever technically and economically practicable.

8. Unnecessary derivatization (blocking group, protection/deprotection, temporary modification of physical/chemical processes) should be avoided whenever possible.

9. Catalytic reagents (as selective as possible) are superior to stoichiometric reagents.

10. Chemical products should be designed so that at the end of their function they do not persist in the environment and break down into innocuous degradation products.

11. Analytical methodologies need to be developed further to allow for real-time in-process monitoring and control before the formation of hazardous substances.

12. Substances and the form of a substance used in a chemical process should be chosen so as to minimize the potential for chemical accidents, including releases, explosions, and fires.

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