Published on November 19th, 2009
Move over CO2—you’ve been ousted, along with methane, as the biggest offenders of global climate change. According to a new a study by Purdue University and NASA, the major chemicals most frequently cited as leading to climate change, namely carbon dioxide and methane, are actually outclassed in their warming potential by compounds receiving less attention. The majority of “greenhouse gases” are created by humans.
The results were discovered when researchers studied more than a dozen chemicals, or greenhouse gases as classified by their warming properties defined by the Intergovernmental Panel on Climate Change. From there, the team developed a blueprint for the underlying molecular machinery of global warming. The results appeared in the November 12, 2009 issue of the American Chemical Society’s Journal of Physical Chemistry, just in time for the convergence of world leaders in Copenhagen. Read the rest of this entry »
Published on November 10th, 2009
In what could be a major breakthrough, Joule Biotechnologies announced that it has directly produced fuel from the plentiful carbon dioxide in the air around us using highly engineered photosynthetic microbes.
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Published on November 9th, 2009
In many ways plastics are simply synthetic compounds that mimic and try to improve upon substances we find widespread in nature—polymers such as you might find in wood, leaves, seeds and fur. Bio-based plastics (those derived from biological sources other than fossil fuels) have been around for more than 100 years. In fact, celluloid, the first synthetic plastic ever made was invented in the mid 1800s, and—you guessed it—was bio-based.
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Published on November 9th, 2009
US Secretary of Energy, Dr. Steven Chu
Arizona State University professor Cody Friesen thinks he can make a metal-air battery with up to 11 times the energy density of lithium batteries at potentially half the cost. Now the US Department of Energy’s advanced research incubator ARPA-E has just given his spin-off company, Fluidic Energy, a $5.13 million research grant to try and do just that.
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Published on November 4th, 2009
In 1877 Russian scientist Dimitri Mendeelev suggested that the large deposits of oil and gas we find under the surface of the Earth could be made without the decay of long-dead organisms in a process called abiotic synthesis of methane.
Since then the theory has been relegated to the back shelf due to a lack of evidence and the prevailing conventional wisdom that all deep oil and gas deposits arise from decaying prehistoric animal and plant material.
While it’s no doubt that the decay of dead animals and plants is one pathway to the creation of Earth’s oil and natural gas deposits (potentially the largest), new research done with high-tech equipment simulating the conditions of deep earth suggests that Mendeelev’s theory is correct.
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Published on October 28th, 2009
Without pavement and parking lots we would still be traveling cross-country in Conestoga wagons on 6-inch deep ruts and be breathing lungfulls of dust every time a vehicle drove by at the Kwik-E-Mart. Needless to say, pavement is one of the many things that makes modern life possible.
But, like everything else in our modern life, the more advanced we get in our ability to collect and analyze data, the more we realize that the good stuff always seems to have its awful consequences too. It’s the same story with pavement.
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Published on October 6th, 2009
Researchers have found a way to create a battery out of Nickel and Lithium that can store more than 3.5 times the energy of lithium-ion batteries and are much safer to boot.
Lithium-ion batteries are great and all—having heralded in a new age of portable electronics and allowed for the possibility of mass-market electric cars—but they have a few major drawbacks. For instance, they have a propensity to catch fire and explode and, although they have a much better energy storage capacity than say lead-acid or nickel metal hydride (NiMH) batteries, they still weigh too much to pack more than a couple hundred miles of range into a passenger car.
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Published on October 2nd, 2009
As part of a National Science Foundation grant program to examine cutting edge ways to make nature work for us, a team of scientists at Iowa State University have been awarded $2 million to unravel how some plants and algae can make hydrocarbons and discover if the genes that govern that process might be isolated.
“These plants are capturing solar energy and creating something that’s chemically identical to petroleum,” said Jackie Shanks, Iowa State’s Manley R. Hoppe Professor of Chemical Engineering, in a statement.
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Published on September 29th, 2009
The demise of retail giant Filene’s Basement may have a positive effect on proponents of vertical urban farming and algae biofuels alike. Since 2007, the developers of a Filene’s site in downtown Boston have been unable to find funding to move the project forward. But now Höweler + Yoon Architecture and their partner Squared have put forth a proposal to erect a temporary vertical, modular, algae bioreactor high-rise in its place.
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Published on September 29th, 2009
This is one of those topics I’m just not sure what to think of…
When the average person hears the term fuel cell, typically what comes to mind is something that mysteriously makes electricity from hydrogen. In reality the process isn’t all that mysterious—basically the hydrogen is split into its component parts (electrons and protons) and the protons are allowed to flow through the cell, but the electrons are forced to travel another path, which creates the current (and charges the battery or runs the motors or turns on the lights).
Although the hydrogen fuel cell is the most common type of cell, you can make fuel cells that use many different things, including hydrocarbons and sugars. They all work on the same basic principal, but hydrogen fuel cells are considered superior because their only emission is water vapor and they produce lots of energy.
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Published on September 11th, 2009
A group of researchers at Uppsala University in Sweden have discovered that a particular type of algae — with a bad reputation for causing damaging algal blooms in oceans throughout the world — produces a substance that can be used to make inexpensive, non-toxic, simple-to-build, flexible, thin and durable batteries that, after optimization, are expected to perform on par with today’s most advanced lithium-ion batteries.
The key to the discovery lies in the way in which the algae, Cladophora, produce a unique type of cellulose with a very large surface area (approximately 80 square meters of surface area per gram of material).
By coating this algal cellulose material with a thin layer of a well-known, conductive polymer, called polypyrrole (PPy), the team has “succeeded in producing a battery that weighs almost nothing and that has set new charge-time and capacity records for polymer-cellulose-based [non-metallic] batteries,” according to Gustav Nyström, a doctoral student in nanotechnology and one of the main researchers.
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Published on September 1st, 2009
But from an another point of view, are wild oil price fluctuations really all that bad?
In my experience, it doesn’t take a higher degree and advanced knowledge of oil economics to see that rampant speculation is behind the crazy swings in oil prices we’ve seen in recent years. Even so, it’s a topic that economists and pundits have debated ad nauseum.
In what may be one of the most exhaustive analyses of the issues surrounding the murky field to date, Rice University researchers from the Baker Institute for Public Policy have released a new policy paper — “Who is in the Oil Futures Market and How Has It Changed?” — aimed at setting the record as straight as can be.
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Published on July 23rd, 2009
Oregon State University Researcher Kaichang Li is already well-known in the research world for developing a non-toxic, soy-based adhesive to make greener plywood for cabinets, so it’s almost no surprise that his next research discovery is along the same lines.
Turning his attention to the materials commonly used as reinforcing fillers in tires — carbon black and silica — Li has figured out a way to use plant products to substitute for these toxic and energy intensive conventional materials.
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Published on June 19th, 2009
Suggestions are floated in the current issue of Industrial Engineering & Chemical Research on the best way to farm living diatoms to turn their oil into a new oil field containing “massive amounts of gasoline.”
As previously fossilized fuel supplies dwindle, pinhead-sized diatoms - at the bottom of the food chain - have become the focus of the attention of the rapacious creatures at the top of the food chain. As we humans run out of oil, we have begun to cast about desperately for our new oil supplies.
Where better to look than at the tiny creatures who died to make us oil millions of years ago?
Lets not wait another million years for currently living diatoms to leave us new oil supplies. Lets extract their oil while they are still alive!
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Published on April 1st, 2009
A Flemish company has announced plans to sell what it claims to be the world’s only true zero emissions vehicle, the HPV (pictured above).
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