Group items tagged

For decades, a small group of scientific dissenters has been trying to shoot holes in the prevailing science of climate change, offering one reason after another why the outlook simply must be wrong. Enlarge This Image Josh Haner/The New York Times A technician at a Department of Energy site in Oklahoma launching a weather balloon to help scientists analyze clouds. More Photos » Temperature Rising Enigma in the Sky This series focuses on the central arguments in the climate debate and examining the evidence for global warming and its consequences. More From the Series » if (typeof NYTDVideoManager != "undefined") { NYTDVideoManager.setAllowMultiPlayback(false); } function displayCompanionBanners(banners, tracking) { tmDisplayBanner(banners, "videoAdContent", 300, 250, null, tracking); } Multimedia Interactive Graphic Clouds and Climate Slide Show Understanding the Atmosphere Related Green Blog: Climate Change and the Body Politic (May 1, 2012) An Underground Fossil Forest Offers Clues on Climate Change (May 1, 2012) A blog about energy and the environment. Go to Blog » Readers’ Comments "There is always some possibility that the scientific consensus may be wrong and Dr. Lindzen may be right, or that both may be wrong. But the worst possible place to resolve such issues is the political arena." Alexander Flax, Potomac, MD Read Full Comment » Post a Comment » Over time, nearly every one of their arguments has been knocked down by accumulating evidence, and polls say 97 percent of working climate scientists now see global warming as a serious risk.

They acknowledge that the human release of greenhouse gases will cause the planet to warm. But they assert that clouds — which can either warm or cool the earth, depending on the type and location — will shift in such a way as to counter much of the expected temperature rise and preserve the equable climate on which civilization depends.

At gatherings of climate change skeptics on both sides of the Atlantic, Dr. Lindzen has been treated as a star. During a debate in Australia over carbon taxes, his work was cited repeatedly. When he appears at conferences of the Heartland Institute, the primary American organization pushing climate change skepticism, he is greeted by thunderous applause.

The study, which compares the traits of young people in high school and entering college today with those of baby boomers and Gen X'ers at the same age from 1966 to 2009, shows an increasing trend of valuing money, image, and fame more than inherent principles like self-acceptance, affiliation, and community. "The results generally support the 'Generation Me' view of generational differences rather than the 'Generation We,'

college students in 1971 ranked the importance of being very well off financially No. 8 in their life goals, but since 1989, they have consistently placed it at the top of the list.

"I see no evidence that today's young people feel much attachment to duty or to group cohesion. Young people have been consistently taught to put their own needs first and to focus on feeling good about themselves."

Being bilingual, it turns out, makes you smarter. It can have a profound effect on your brain, improving cognitive skills not related to language and even shielding against dementia in old age.

in a bilingual’s brain both language systems are active even when he is using only one language, thus creating situations in which one system obstructs the other. But this interference, researchers are finding out, isn’t so much a handicap as a blessing in disguise. It forces the brain to resolve internal conflict, giving the mind a workout that strengthens its cognitive muscles.

the bilingual experience improves the brain’s so-called executive function — a command system that directs the attention processes that we use for planning, solving problems and performing various other mentally demanding tasks. These processes include ignoring distractions to stay focused, switching attention willfully from one thing to another and holding information in mind — like remembering a sequence of directions while driving.

A congregation of scientists in Cambridge, UK, recently issued a formal declaration that lots of non-human animals, including mammals, birds, and likely even octopuses are conscious beings. What do they mean by consciousness, you ask? It's a state of awareness of one's body and one's environment, anywhere from basic perceptual awareness to the reflective self-awareness of humans. This declaration will surely strike many of us as ancient news and a long overdue recognition, even as it may annoy the stubborn skeptics among us. 

We declare the following: “The absence of a neocortex does not appear to preclude an organism from experiencing affective states. Convergent evidence indicates that non-human animals have the neuroanatomical, neurochemical, and neurophysiological substrates of conscious states along with the capacity to exhibit intentional behaviors. Consequently, the weight of evidence indicates that humans are not unique in possessing the neurological substrates that generate consciousness. Non- human animals, including all mammals and birds, and many other creatures, including octopuses, also possess these neurological substrates.

What happens when children reach puberty earlier and adulthood later? The answer is: a good deal of teenage weirdness. Fortunately, developmental psychologists and neuroscientists are starting to explain the foundations of that weirdness.

The crucial new idea is that there are two different neural and psychological systems that interact to turn children into adults. Over the past two centuries, and even more over the past generation, the developmental timing of these two systems has changed. That, in turn, has profoundly changed adolescence and produced new kinds of adolescent woe. The big question for anyone who deals with young people today is how we can go about bringing these cogs of the teenage mind into sync once again

The first of these systems has to do with emotion and motivation. It is very closely linked to the biological and chemical changes of puberty and involves the areas of the brain that respond to rewards. This is the system that turns placid 10-year-olds into restless, exuberant, emotionally intense teenagers, desperate to attain every goal, fulfill every desire and experience every sensation. Later, it turns them back into relatively placid adults.

members of the upper class are more likely than others to behave unethically, to lie during negotiations, to drive illegally and to cheat when competing for a prize.“Greed is a robust determinant of unethical behavior,” the authors conclude. “Relative to lower-class individuals, individuals from upper-class backgrounds behaved more unethically in both naturalistic and laboratory settings.”

Our findings suggest that when a person is suffering, upper-class individuals perceive these signals less well on average, consistent with other findings documenting reduced empathic accuracy in upper-class individuals (Kraus et al., 2010). Taken together, these findings suggest that upper-class individuals may underestimate the distress and suffering in their social environments.

each participant was assigned to listen, face to face, from two feet away, to someone else describing real personal experiences of suffering and distress.The listeners’ responses were measured two ways, first by self-reported levels of compassion and second by electrocardiogram readings to determine the intensity of their emotional response. The participants all took a test known as the “sense of power” scale, ranking themselves on such personal strengths and weaknesses as ‘‘I can get people to listen to what I say’’ and ‘‘I can get others to do what I want,” as well as ‘‘My wishes do not carry much weight’’ and ‘‘Even if I voice them, my views have little sway,’’ which are reverse scored.The findings were noteworthy, to say the least. For “low-power” listeners, compassion levels shot up as the person describing suffering became more distressed. Exactly the opposite happened for “high-power” listeners: their compassion dropped as distress rose.

Most of us say we admire people who stand up for what’s right (or what is eventually shown to be right), especially when they are strong enough to stick to their guns in the face of strenuous opposition.

Australian academics argue that group members are often hostile to people who buck conformity, even if the members later agree with the dissenter.

Professor Zimbardo has classified evil activity in three categories: individual (a few bad apples), situational (a bad barrel of apples) or systemic (bad barrel makers).

you need not have a philosophy about meat-eating to understand that we — Americans, that is — need to do less of it. In fact, only if meat were produced at no or little expense to the environment, public health or animal welfare (as, arguably, some of it is), would our decisions about whether to raise and kill animals for food come down to ethics.

The purely pragmatic reasons to eat less meat (and animal products in general) are abundant

18 percent of greenhouse gases were attributable to the raising of animals for food.

we need a new way of thinking about our informational milieu. What we need is a concept of infopolitics that would help us understand the increasingly dense ties between politics and information

Infopolitics encompasses not only traditional state surveillance and data surveillance, but also “data analytics” (the techniques that enable marketers at companies like Target to detect, for instance, if you are pregnant), digital rights movements (promoted by organizations like the Electronic Frontier Foundation), online-only crypto-currencies (like Bitcoin or Litecoin), algorithmic finance (like automated micro-trading) and digital property disputes (from peer-to-peer file sharing to property claims in the virtual world of Second Life)

Surveying this iceberg is crucial because atop it sits a new kind of person: the informational person. Politically and culturally, we are increasingly defined through an array of information architectures: highly designed environments of data, like our social media profiles, into which we often have to squeeze ourselves

. As convincing as juries may find the testimony of witnesses, good prosecutors know that human memory is, more often than not, the least reliable source of evidence.

“We think parts of the brain used to actually perceive an object and to imagine an object overlap,” says Northwestern University scientist Kenneth Paller. “Thus, the vividly imagined event can leave a memory trace in the brain that’s very similar to that of an experienced event.”

How this process works is a research question of great interest to neuroscientists. This week, researchers affiliated with a project at MIT reported a giant step toward explaining how external stimuli can distort mental representations to produce brand new, seemingly accurate—but completely false—memories.

What was, in my view, a logical conclusion reached by the authors was too much for some researchers to take.

he conclusion of the Dmanisi study was that the variation in skull shape and morphology observed in this small sample, derived from a single population of Homo erectus, matched the entire variation observed among African fossils ascribed to three species - H. erectus, H. habilis and H. rudolfensis.

a single population of H. erectus,

This means that Neanderthal genes are now scattered across the genomes of all non-Africans living today.

arry the higher risk version of the gene are 25% more likely to have diabetes than those who do not, and people who inherited copies from both parents are 50% more likely to have diabetes.

named SLC16A11 - has been found in up to half of people with recent Native American ancestry, including Latin Americans.

is the fancy world of wine tasting all pretentious bunk? Not exactly. The wine tasters in the experiments above were being influenced by the nasty beast of expectation. A wine expert's objectivity and powers of taste under normal circumstance might be amazing, but Brochet's manipulations of the environment misled his subjects enough to dampen their acumen. An expert's own expectation can act like Kryptonite on their superpowers. Expectation, as it turns out, is just as important as raw sensation. The build up to an experience can completely change how you interpret the information reaching your brain from your otherwise objective senses

In psychology, true objectivity is pretty much considered to be impossible. Memories, emotions, conditioning, and all sorts of other mental flotsam taint every new experience you gain. In addition to all this, your expectations powerfully influence the final vote in your head over what you believe to be reality.

People said they liked Pepsi, labeled M, better than Coke, labeled Q. Irritated by this, Coca-Cola did their own study and put Coke in both glasses. Again, M won the contest. It turned out it wasn't the soda; people just liked the letter M better than the letter Q.

psychologist Elizabeth Loftus of the University of California–Irvine, has made her name working on false memory. She tells Alison George how recollections can be conjured up,

What exactly is going on when we retrieve a memory? EL: When we remember something, we're taking bits and pieces of experience—sometimes from different times and places—and bringing it all together to construct what might feel like a recollection but is actually a construction. The process of calling it into conscious awareness can change it, and now you're storing something that's different

The memory of witnesses to crimes and accidents was a natural place to go. In particular I looked at what happens when people are questioned about their experiences. I would ultimately see those questions as a means by which the memories got contaminated.

sterile world of the womb, at birth babies are thrust into an environment full of bacteria, viruses, and parasites. They are very vulnerable to these infections for their first months of life—a trait that has long been blamed on their immature immune systems.

“This more intricate regulation of immune responses makes more sense than immaturity,” said Sing Sing Way, who led the study, “because it allows a protective response to be mounted if needed.” This may explain why newborn immune responses, though generally weak, also vary wildly between different babies and across different studies.

njecting 6-day-old mice with splenocytes (a type of white blood cell) from adults. Newborn mice are normally 1,000 times more suspectible to bacterial infections than adults, but despite receiving working immune cells, they became no less vulnerable.

peer review. The process has been blamed for everything from slowing down the communication of new discoveries to introducing woeful biases to the literature

peer review does not elevate the quality of published science and that many published research findings are later shown to be false. In response, a growing number of scientists are working to impose a new vision of the scientific process through post-publication review,

organized post-publication peer review system could help “clarify experiments, suggest avenues for follow-up work and even catch errors.” If used by a critical mass of scientists, he added, “it could strengthen the scientific process.”  

primates have a remarkable ability to detect snakes, even in a chaotic visual environment.

first evidence of snake-selective neurons in the primate brain that I’m aware of,

recorded pulvinar neuronal activity via electrodes implanted into the brains of two adult macaques—one male, one female—as they were shown images of monkey faces, monkey hands, geometric shapes, and snakes. The brains of both monkeys—which were raised at a national monkey farm in Amami Island, Japan, and had no known encounters with snakes before the experiment—showed preferential activity of neurons in the medial and dorsolateral pulvinar to images of snakes, as compared with the other stimuli. Further, snakes elicited the fastest and strongest responses from these neurons.