Toggle light / dark theme

Cooling buildings worldwide

About 40 percent of all the energy consumed by buildings worldwide is used for space heating and cooling. With the warming climate as well as growing populations and rising standards of living—especially in hot, humid regions of the developing world—the level of cooling and dehumidification needed to ensure comfort and protect human health is predicted to rise precipitously, pushing up global energy demand.

Much discussion is now focusing on replacing the greenhouse gases frequently used as refrigerants in today’s air conditioners. But another pressing concern is that most existing systems are extremely -inefficient.

“The main reason they’re inefficient is that they have two tasks to perform,” says Leslie Norford, the George Macomber (1948) Professor in Construction Management in the Department of Architecture. “They need to lower temperature and remove moisture, and doing both those things together takes a lot of extra energy.”

Public Health Officials Warn This STD Could Become a Superbug

Sexually transmitted infections can be worrisome and embarrassing, but with a few notable exceptions, most of them are quite treatable these days. Unfortunately, a new one may be on the rise. British public health officials say that Mycoplasma genitalium, a bacterial infection known as MGen for short, could soon become immune to antibiotics. If this happens, the bacterium would become what’s known as a superbug, the growing class of bacteria that have developed resistance to antibiotic drugs.

The bacterium, which can live in humans’ urinary and genital tracts, is transmitted through sexual intercourse. Women infected with the bacterium can experience pelvic inflammation and cervical inflammation, while men can experience inflammation of the urethra. An infected patient would feel these symptoms, generally speaking, as pain. Perhaps most disconcertingly, though, sometimes the infection will not cause any noticeable symptoms, meaning that an infected person can transmit it without even realizing that they’re doing so. If the infection is left untreated for too long, it can cause female patients to become sterile.

In response to the emerging threat posed by MGen, the British Association for Sexual Health and HIV on Sunday issued its draft guidelines for dealing with MGen. The organization also warned that antibiotic-resistant MGen could become much more prevalent in the coming years.

Sitting tied to raised risk of death from 14 diseases

(HealthDay)—Get up off of the couch: Sitting too much may kill you even if you exercise regularly.

If you sit for six hours a day or more, your risk of dying early jumps 19 percent, compared with people who sit fewer than three hours, an American Cancer Society study suggests.

And, the study authors added, sitting may kill you in 14 ways, including: cancer; heart disease; stroke; diabetes; kidney disease; suicide; chronic (COPD); lung disease; liver disease; peptic ulcer and other ; Parkinson’s disease; Alzheimer’s disease; nervous disorders; and .

Faraday Future gets a $2 billion lifeline to build expensive crossover

Faraday Future, the fledgling Tesla competitor working to build a $300,000 electric SUV, has been thrown a financial lifeline.

Evergrande Health, a division of a large Hong Kong conglomerate, has committed to invest $2 billion to keep alive the all-electric luxury SUV project, according to a report in TechCrunch.

Faraday Future showed off its ultra-futuristic—and ultra expensive—FF91 electric SUV at the 2017 CES show, but has struggled to bring the car to market.

The Single Greatest Economic Myth

Recorded at “Contra Krugman: The Economic Myths of the 2016 Election”: the Mises Circle at Seattle’s historic Town Hall, on 21 May 2016.

Presidential candidates promise everything from living wages to free health care and college. Proposals about how to run whole segments of the economy are made with a straight face. The most tired and hackneyed ideas about income equality, corporate greed, creating jobs, and paying one’s fair share of taxes are trotted out. And millions of voters apparently believe it all, falling for the same promises of free stuff and prosperity from Washington.

How do political candidates get away with this nonsense, year after year and election after election? More importantly, what can we do as individuals to fight the entrenched economic illiteracy that keeps politicians in business?

Full talk, licenced under creative common: https://www.youtube.com/watch?v=h6KQY5gbEAM


If you like the content, subscribe!

The human physiological impact of global deoxygenation

Article (2017) about oxygen depletion. “There has been a clear decline in the volume of oxygen in Earth’s atmosphere over the past 20 years. Although the magnitude of this decrease appears small compared to the amount of oxygen in the atmosphere, it is difficult to predict how this process may evolve, due to the brevity of the collected records. A recently proposed model predicts a non-linear decay, which would result in an increasingly rapid fall-off in atmospheric oxygen concentration, with potentially devastating consequences for human health. We discuss the impact that global deoxygenation, over hundreds of generations, might have on human physiology. Exploring the changes between different native high-altitude populations provides a paradigm of how humans might tolerate worsening hypoxia over time. Using this model of atmospheric change, we predict that humans may continue to survive in an unprotected atmosphere for ~3600 years. Accordingly, without dramatic changes to the way in which we interact with our planet, humans may lose their dominance on Earth during the next few millennia.”


There has been a clear decline in the volume of oxygen in Earth’s atmosphere over the past 20 years. Although the magnitude of this decrease appears small compared to the amount of oxygen in the atmosphere, it is difficult to predict how this process may evolve, due to the brevity of the collected records. A recently proposed model predicts a non-linear decay, which would result in an increasingly rapid fall-off in atmospheric oxygen concentration, with potentially devastating consequences for human health. We discuss the impact that global deoxygenation, over hundreds of generations, might have on human physiology. Exploring the changes between different native high-altitude populations provides a paradigm of how humans might tolerate worsening hypoxia over time. Using this model of atmospheric change, we predict that humans may continue to survive in an unprotected atmosphere for ~3600 years. Accordingly, without dramatic changes to the way in which we interact with our planet, humans may lose their dominance on Earth during the next few millennia.

Keywords: Oxygen, Hypoxia, Acclimatization, Physiological adaptation.

Human dominion over planet Earth is driving profound changes that may culminate in extinction. Loss of natural vegetation and the burning of fossil fuels are altering our atmosphere at an alarming rate [1]. Two interconnected themes have received the most attention: the accelerated rise in atmospheric carbon dioxide concentration and the escalation of global temperatures. These changes are accompanied by natural phenomena with potentially catastrophic consequences, such as increasingly unpredictable climate subsystems and rising sea levels from polar ice cap recession [2–4]. If such environmental hazards were not a sufficient threat to the survival of Earth’s 7 billion plus human inhabitants, there is yet another concerning change already underway, global deoxygenation.

Methane-producing microbial communities found in fracking wells

Deep in the rocky earth, in the liquid-filled cracks created by fracking, lives a community of highly interactive microbes—one that could at once have serious implications for energy companies, human health and scientists investigating the potential for life on Mars.

New research has uncovered the genetic details of microbes found in fracking wells. Not only do a wide array of bacteria and viruses thrive in these crevices created by hydraulic fracturing—they also have the power to produce methane, according to a study led by scientists at The Ohio State University and published in the journal Proceedings of the National Academy of Sciences.

That means it’s possible that the tiny life forms could create more energy—and from a different source—than the fracking companies are going after in the first place.

/* */