The Dawn of the Designer Babies

The headline says it all: “The Dawn of the Designer Babies.” Scientists have developed a new technology meant to eliminate genetic abnormalities in newborns. They do this by combining the DNA of three people instead of only two. The procedure has been successfully tested in monkeys and now the FDA is considering whether the trial should expand to humans. At first the procedure would be available only to women who are likely to pass on debilitating genetic diseases to their children. After that? Well, we can only imagine.

The history of technology shows that we would far rather ask the “can we?” questions than the “should we?” questions. We are more interested in ability than morality. Lest we get cocky, we ought to admit that this is true in the small picture as much as the big picture, in the living room as much as the laboratory. Our relationship to technology is such that on some level we tacitly believe technology’s gifts to us must be good. We believe this when the new social network or the new cell phone comes along and we believe this when the new experimental procedure comes along.    Continue at Tim Challies

Scientists are Struggling to explain a Slowdown in Climate Change

Often focused on century-long trends, most climate models failed to predict that the temperature rise would slow, starting around 2000. Scientists are now intent on figuring out the causes and determining whether the respite will be brief or a more lasting phenomenon.

Getting this right is essential for the short and long-term planning of governments and businesses ranging from energy to construction, from agriculture to insurance. Many scientists say they expect a revival of warming in coming years.

Theories for the pause include that deep oceans have taken up more heat with the result that the surface is cooler than expected, that industrial pollution in Asia or clouds are blocking the sun, or that greenhouse gases trap less heat than previously believed.

The change may be a result of an observed decline in heat-trapping water vapor in the high atmosphere, for unknown reasons. It could be a combination of factors or some as yet unknown natural variations, scientists say.

Weak economic growth and the pause in warming is undermining governments' willingness to make a rapid billion-dollar shift from fossil fuels. Almost 200 governments have agreed to work out a plan by the end of 2015 to combat global warming.   Continue at Reuters

Studies show HIV Infection Rates still Rising Among Gay Men

From left-leaning Time magazine.

Excerpt:

As the world’s leading AIDS researchers gather for the International AIDS Conference in Washington, D.C., scientists report that despite gains in controlling the spread of HIV, the disease has continued to spread at an alarming rate in the very population in which it first appeared — gay men.

In a series of papers in the Lancet dedicated to the dynamics of HIV among gay men — a group epidemiologists define as men who have sex with men (MSM) — scientists say that the continued burden of AIDS in this group is due to a combination of lifestyle and biological factors that put these men at higher risk. Rates are rising in all countries around the world.

In one study, led by Chris Beyrer, of the Center for Public Health and Human Rights at the Johns Hopkins Bloomberg School of Public Health, researchers analyzed surveillance reports and studies of HIV among MSM, including data that were part of routine United Nations reporting from member nations. Rates of HIV among gay men ranged from 3% in the Middle East to 25% in the Caribbean. In all reporting nations, rates were on the rise, even in developed nations like the U.S., Australia and the U.K. where HIV is declining overall.   Continue at WintryKnight

What Happened Before the Big Bang?

A BBC documentary with this title was aired on SBS-TV in Australia in April, 2012. In it, several cosmologists discus ‘the unthinkable’—perhaps the big bang was not the beginning of everything after all. It seems that scientists have discovered a new law. Well, not actually new—just one that has been treated as if it didn’t exist for the last half century or so by ‘big-bangers’ such as Stephen Hawking, Roger Penrose, Paul Davies, Edwin Hubble, et al, namely the law of Cause and Effect.

The program explains that the concept of the big bang¹ postulates that “everything we see in the universe today—us, trees, galaxies, zebras—emerged, in an instant, from nothing. And that’s a problem. It’s all effect and no cause.” We are then given five different explanations from five different scientists concerning what this cause may (or may not) have been.

Prof. Michio Kaku and the meaning of ‘nothing’

Dr Michio Kaku is Professor of Theoretical Physics at City University, New York. He asks: “How can it be that everything comes from nothing?” His solution: “If you think about it a while, you begin to realise it all depends on how you define ‘nothing’!”²

 

We are then shown a huge NASA vacuum chamber, the largest in the world—the nearest we can get to a state of nothing, but which still has dimensions (‘nothing in 3D’), and through which light can pass. Prof. Kaku tells us: “I think there are two kinds of nothing. First there is something I call absolute nothing: no equations, no space, no time, no anything that the human mind can conceive of, just nothing. Then there is the vacuum which is nothing but the absence of matter.” 

The host then comments: “Prof. Kaku’s version of nothing is the perfect vacuum where on the face of it there is only energy. But in a perfect vacuum, energy sometimes transforms itself temporarily and briefly into matter. It is one of these tiny explosions that might have been going on and ended up in the big bang.”

Prof. Kaku: “So for me the universe did not come from absolute nothing—that is a state of no equations, no empty space, no time; it came from a pre-existing state—also a state of nothing. Our universe did in fact come from an infinitesimally tiny little explosion that took place giving us the big bang, and giving us the galaxies and stars we have today.”   Continue at Russell Grigg

Global Warming - Examine the Issue Carefully