The Solar Revolution is Near

From The Futurist:

I have long been optimistic about Solar Energy (whether photovoltaic or thermal) becoming our largest energy source within a few decades. Earlier articles on the subject include :

A Future Timeline for Energy

Solar Energy Cost Curve

Several recent events and developments have led me to reinforce this view. First of all, consider this article from Scientific American, detailing a Solar timeline to 2050. The article is not even Singularity-aware, yet details many steps that will enable Solar energy to expand by orders of magnitude above the level that it is today. Secondly, two of the most uniquely brilliant people alive today, Ray Kurzweil and Elon Musk (who I recently chatted with), have both provided compelling cases on why Solar will be our largest energy source by 2030. Both Kurzweil and Musk reside in significantly different spheres, yet have arrived at the same prediction.

Read more ....

Is MIT's Latest Solar 'Breakthrough' All Hype or a New Hope?

From Popular Mechanics:

The research university's third solar-powered power move in six weeks sounds like a revolution in the making: Use electrolysis to capture the sun's potential and store it for later—on the cheap. But as PM's award-winning energy reporter explains, it's not so much a solar-specific breakthrough as it is a boon for the much-maligned hydrogen industry.

MIT announced on Thursday afternoon a new method of splitting water into hydrogen and oxygen, predicting that it will unleash a "solar revolution." And they're partly right. The research, which appears in the new issue Science, has little to do with solar power as we usually think of it. But it has wide-reaching implications as a storage medium, making renewable but intermittent energy sources like the sun and wind more practical for everyday use.

Read more ....

Is Aging An Accident Of Evolution? Stanford Scientists Say "Yes"

The Daily Galaxy:

"Everyone has assumed we age by rust. But how do you explain animals that don't age? Some tortoises lay eggs at the age of 100, there are whales that live to be 200 and clams that make it past 400 years."

Stuart Kim, PhD, Stanford University professor of developmental biology and genetics

Prevailing theory of aging challenged by Stanford University Medical School researchers. Their discovery contradicts the prevailing theory that aging is a buildup of tissue damage similar to rust. The Stanford findings suggest specific genetic instructions drive the process. If they are right, science might one day find ways of switching the signals off and halting or even reversing aging.

Read more ....

The Overflowing American Dinner Plate

From the New York Times:

In 1970, the average American ate about 16.4 pounds of food a week, or 2.3 pounds daily. By 2006, the average intake grew by an additional 1.8 pounds a week.

Among other things, that's an extra half pound of fat weekly - mostly from oils and shortening. That doesn't count the fat in the extra quarter pound of meat Americans now eat every seven days. Those fats were somewhat offset by a steep drop in dairy consumption, the only major food group to have a decline, primarily in milk drinking. (But we do love our cheese. More and more of it.)

This portrait of the raw ingredients of the American diet is based on what the Agriculture Department calls "food availability" - the amount of food produced for the average American consumer. The data are adjusted for food losses (waste on farms; in processing and transportation; and in stores, restaurants and homes) to provide a close approximation of what individuals eat. (The most recent year for which data are available is 2006.)

Read more ....

Weighing the Health Benefits of Birth Control

From The New York Times:

Unveiled in 1960, the birth control pill revolutionized contraception. Yet despite an abundance of birth control options today, almost half the pregnancies in this country are unintended, according to the Centers for Disease Control and Prevention, more than in any other developed nation. What’s the reason?

The issue is not technology. But economics and human behavior are another story. Nearly a third of women who start a new type of birth control stop within a year, according to one recent study, largely because of changes in their insurance coverage. All methods have some side effects. And the current crop of intrauterine devices, or IUD’s, despite having a nearly perfect efficacy rate, have been slow to catch on, experts say, partly because more doctors need to be trained in inserting them.

Read more ....

Miscanthus Can Meet U.S. Biofuels Goal Using Less Land Than Corn Or Switchgrass

From University Of Illinois:

CHAMPAIGN, Ill. — In the largest field trial of its kind in the United States, researchers have determined that the giant perennial grass Miscanthus x giganteus outperforms current biofuels sources – by a lot. Using Miscanthus as a feedstock for ethanol production in the U.S. could significantly reduce the acreage dedicated to biofuels while meeting government biofuels production goals, the researchers report.

The new findings, from researchers at the University of Illinois, appear this month in the journal Global Change Biology.

Read more ....