Science

Residents of Manhattan will not just sweat harder from rising temperatures in the future, says a new study; many may die. Researchers say deaths linked to warming climate may rise some 20 percent by the 2020s, and, in some worst-case scenarios, 90 percent or more by the 2080s. Higher winter temperatures may partially offset heat-related deaths by cutting cold-related mortality—but even so, annual net temperature-related deaths might go up a third. The study, published this week in the journal Nature Climate Change, was done by a team at Columbia University's Earth Institute and the Mailman School of Public Health.

A global warming "pause" over the past decade may invalidate the harshest climate change predictions for the next 50 to 100 years, a study said Sunday—though levels remain in the danger zone.

Scientists look at past climates to learn about climate change and the ability to simulate it with computer models. One region that has received a great deal of attention is the Indo-Pacific warm pool, the vast pool of warm water stretching along the equator from Africa to the western Pacific Ocean.

One of the basic principles of nanotechnology is that when you make things extremely small—one nanometer is about five atoms wide, 100,000 times smaller than the diameter of a human hair—they are going to become more perfect.

A new study shows how complex biochemical transformations may have been possible under conditions that existed when life began on the early Earth. The study shows that RNA is capable of catalyzing electron transfer under conditions similar to those of the early Earth. Because electron transfer, the moving of an electron from one chemical species to another, is involved in many biological processes – including photosynthesis, respiration and the reduction of RNA to DNA – the study's findings suggest that complex biochemical transformations may have been possible when life began.

The UK astronaut Tim Peake is given a date to fly to the International Space Station.

The latest data on the climate suggests it will warm slightly less, and more slowly, than expected – giving us a chance to avoid the worst effects

Richard Marshall interviews Gordon Finlayson in 3:AM Magazine: 3:AM: A key discussion in contemporary liberal theory of ethics and politics is the relationship and differences between Habermas and Rawls. Can you say something about what you take the main points of dispute are and where you stand on this? GF: Sure. In my view, despite the amount of ink that has been spilt on Habermas and Rawls in their respective fields, relatively little attention has been paid to the dispute between them. This is largely because influential commentators and critics were quick to judge their exchange in the Journal of Philosophy a damp squib. This was in part because expectations ran high, at the time, because two of the greatest social and political theorists of the 20th century, although working in different traditions, roughly analytic political philosophy and German Social theory had engaged each other in debate. It was also because in truth neither thinker was sufficiently well apprised of the detail of the others theory – unsurprisingly really, since they worked in very different traditions and each had just spent the last few years writing their own major work of political theory. Finally, everyone at the time, including the disputants themselves, were seduced by the assumption that the salient point of comparison between their respective theories was Habermas’s principle (U) and his conception of the moral standpoint, and Rawls’s argument that the principles of justice are those that would be chosen by a rational and reasonable persons in the Original Position. Almost everyone who has written on Habermas and Rawls makes that particular mistake. My take on that is straightforward. The debate between them concerns their respective political theories. It is basically a dispute between Rawls’s theory of Political Liberalism, and Habermas’s Discourse Theory of Law. It is not primarily a dispute between Rawls’s A Theory of Justice, and Habermas Discourse Ethics. Principle (U) is the central idea in Habermas’s Discourse Ethics, which is a moral theory, not a theory of law or of democratic legitimacy, while the argument from the Original Position takes a back seat in Rawls’s Political Liberalism. People who interpret the Habermas Rawls dispute in the light of the contrast between Habermas’s principle (U) and Rawls’s Original Position, are looking at the wrong thing and so miss the real points of dispute. What people should have been asking is this. What are the central organizing ideas of their respective political theories, and on what significant points do these ideas conflict? 

Mike Jay reviews Suzanne Corkin's Permanent Present Tense: The Man with No Memory, and What He Taught the World in the LRB: Memory creates our identity, but it also exposes the illusion of a coherent self: a memory is not a thing but an act that alters and rearranges even as it retrieves. Although some of its operations can be trained to an astonishing pitch, most take place autonomously, beyond the reach of the conscious mind. As we age, it distorts and foreshortens: present experience becomes harder to impress on the mind, and the long-forgotten past seems to draw closer; University Challenge gets easier, remembering what you came downstairs for gets harder. Yet if we were somehow to freeze our memory at the youthful peak of its powers, around our late twenties, we would not create a polished version of ourselves analogous to a youthful body, but an early, scrappy draft composed of childhood memories and school-learning, barely recognisable to our older selves. Something like this happened to the most famous case of amnesia in 20th-century science, a man known only as ‘H.M.’ until his death in 2008. When he was 27, a disastrous brain operation destroyed his ability to form new memories, and he lived for the next 55 years in a rolling thirty-second loop of awareness, a ‘permanent present tense’. During this time he was subjected to thousands of hours of tests, of which naturally he had no recall; he provided data for hundreds of scientific papers, and became the subject of a book (Memory’s Ghost by Philip Hilts) and a staple of popular science journalism; by the 1990s digital images of his uniquely disfigured hippocampus featured in almost every standard work on the neuroscience of memory. Since his death his brain has been shaved into 2401 slices, each 70 microns thick, compared in one account to the slivers of ginger served with sushi. Suzanne Corkin, an MIT neuroscientist, first met him in 1962 and after 1980 became his lead investigator and ‘sole keeper’. Permanent Present Tense is her account of Henry Gustave Molaison – his full identity can finally be revealed – and the historic contribution he made to science. Corkin had a reputation for strict policing of access to Henry, a charge she happily concedes: ‘I did not want him to become a sideshow attraction – the man without a memory.’ After the death of his mother, his last thirty years were spent at a Connecticut nursing home in strict anonymity, with staff sworn to secrecy and filming prohibited. More than a hundred carefully screened researchers were admitted over the years to perform brain scans and cognitive tests, but were never told his name. Corkin’s lucid, well-organised telling of Henry’s story merges intimate case history with an account of the current scientific understanding and how it was reached.

Christopher Benfey in the NYRB's blog: Spring should be a time of portents and premonitions, winged harbingers (“I dreaded that first Robin, so,” as Emily Dickinson put it with characteristic ambivalence) and new beginnings. This thought struck me as I read Megan Marshall’s sympathetic new biography of Margaret Fuller, which opens with a familiar phrase from Virgil’s Aeneid, one that inspired an essay Fuller wrote during her precocious childhood. Possunt, quia posse videntur means, roughly, “They can because they think they can,” and describes a team of rowers who, according to Marshall, “will themselves to win a race.” The phrase, which Fuller thought demonstrated “confidence in the future,” gives Marshall an overarching theme for Fuller’s fiercely driven life. But Fuller also made use of the Aeneid when she was less confident of the future. She was known to perform the ancient form of divination in which a passage of Virgil selected at random is assumed to reveal what lies ahead. Sir Philip Sidney described the practice, with a dash of skepticism, in his Defence of Poesy: And so far were they carried into the admiration thereof, that they thought in the chanceable hitting upon any such verses great fore-tokens of their following fortunes were placed; whereupon grew the word of Sortes Virgilianae, when by sudden opening Virgil’s book they lighted upon some verse of his making.