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Earth

Study: Antarctic Sea-Level Rising Faster Than Global Rate 241

Posted by samzenpus
from the how-high's-the-water-momma? dept.
An anonymous reader writes with this bit of good news for everyone who is waiting for their homes to one day be on the beach. Melting ice is fuelling sea-level rise around the coast of Antarctica, a new report in Nature Geoscience finds. Near-shore waters went up by about 2mm per year more than the general trend for the Southern Ocean as a whole in the period between 1992 and 2011. Scientists say the melting of glaciers and the thinning of ice shelves are dumping 350 billion tonnes of additional water into the sea annually. This influx is warming and freshening the ocean, pushing up its surface. "Freshwater is less dense than salt water and so in regions where an excess of freshwater has accumulated we expect a localized rise in sea level," explained Dr Craig Rye from the University of Southampton, UK, and lead author on the new journal paper.
Earth

Climate Damage 'Irreversible' According Leaked Climate Report 530

Posted by Unknown Lamer
from the midsummer-2045 dept.
New submitter SomeoneFromBelgium (3420851) writes According to Bloomberg a leaked climate report from the IPPC speaks of "Irreversible Damage." The warnings in the report are, as such, not new but the tone of voice is more urgent and more direct than ever. It states among other things that global warming already is affecting "all continents and across the oceans," and that "risks from mitigation can be substantial, but they do not involve the same possibility of severe, widespread, and irreversible impacts as risks from climate change, increasing the benefits from near-term mitigation action."
Earth

Cause of Global Warming 'Hiatus' Found Deep In the Atlantic 458

Posted by samzenpus
from the biggest-heatsink dept.
vinces99 writes with news about a study that may account for a slowdown in air temperature rises. Following rapid warming in the late 20th century, this century has so far seen surprisingly little increase in the average temperature at the Earth's surface. More than a dozen theories have now been proposed for the so-called global warming hiatus, ranging from air pollution to volcanoes to sunspots. New research from the University of Washington shows the heat absent from the surface is plunging deep in the north and south Atlantic Ocean, and is part of a naturally occurring cycle. The study is published in Science. Subsurface ocean warming explains why global average air temperatures have flatlined since 1999, despite greenhouse gases trapping more solar heat at the Earth's surface. "Every week there's a new explanation of the hiatus," said corresponding author Ka-Kit Tung, a UW professor of applied mathematics and adjunct faculty member in atmospheric sciences. "Many of the earlier papers had necessarily focused on symptoms at the surface of the Earth, where we see many different and related phenomena. We looked at observations in the ocean to try to find the underlying cause." What they found is that a slow-moving current in the Atlantic, which carries heat between the two poles, sped up earlier this century to draw heat down almost a mile (1,500 meters). Most previous studies focused on shorter-term variability or particles that could block incoming sunlight, but they could not explain the massive amount of heat missing for more than a decade.
Earth

Scientists Baffled By Unknown Source of Ozone-Depleting Chemical 303

Posted by Soulskill
from the i-blame-the-schools dept.
schwit1 writes: Scientists have found that, despite a complete ban since 2007, ozone-depleting chemicals are still being pumped into the atmosphere from some unknown source. "Carbon tetrachloride (CCl4), which was once used in applications such as dry cleaning and as a fire-extinguishing agent, was regulated in 1987 under the Montreal Protocol along with other chlorofluorocarbons that destroy ozone and contribute to the ozone hole over Antarctica. Parties to the Montreal Protocol reported zero new CCl4 emissions between 2007-2012. However, the new research shows worldwide emissions of CCl4 average 39 kilotons (about 43,000 U.S. tons) per year, approximately 30 percent of peak emissions prior to the international treaty going into effect. "We are not supposed to be seeing this at all," said Qing Liang, an atmospheric scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, and lead author of the study published online in the Aug. 18 issue of Geophysical Research Letters, a journal of the American Geophysical Union. "It is now apparent there are either unidentified industrial leakages, large emissions from contaminated sites, or unknown CCl4 sources."

Comment: Postal is an Ideological Fanatic (Score 4, Insightful) 454

by Nova Express (#47505491) Attached to: MIT's Ted Postol Presents More Evidence On Iron Dome Failures

The way he defines success and failure is framed to say all missile defense fails.

Iron Dome uses a combination of a proximity (radar activited) fuse and fragmentation. Sometimes the interceptor destroys the warhead. Sometimes it causes an explosion of the propellant which destroys the warhead. Sometimes it simply breaks the incoming missile or rocket into segments or destroys its ability to follow its planned ballistic path. According to Lloyd and Postol, if the warhead isn’t destroyed the interceptor failed.

You don’t need a Ph.D. to see the immense flaw in this logic: if someone fires a missile at you and you aren’t hit that is good news.

Comment: Conservatives have been making the case... (Score 0) 474

...to end drug prohibition since at least 1996, on both practical and 10th Amendment grounds. Statists love the "War on Drugs" because it gives them more ways to control people.

Meanwhile, President Obama, the first president who openly admitted to using illegal drugs, has cracked down harder on medical marijuana and other uses of "choom" far harder than Bush ever did.

Power

People Who Claim To Worry About Climate Change Don't Cut Energy Use 710

Posted by Unknown Lamer
from the just-build-a-few-nuclear-reactors dept.
schwit1 (797399) writes with news that a UK study has found that folks concerned about climate change don't do much to conserve power at home. From the article: Those who say they are concerned about the prospect of climate change consume more energy than those who say it is "too far into the future to worry about," the study commissioned by the Department for Energy and climate change found. That is in part due to age, as people over 65 are more frugal with electricity but much less concerned about global warming. However, even when pensioners are discounted, there is only a "weak trend" to show that people who profess to care about climate change do much to cut their energy use. The findings were based on the Household Electricity Survey, which closely monitored the electricity use and views of 250 families over a year. The report (PDF), by experts from Loughborough University and Cambridge Architectural Research, was commissioned and published by DECC. High power use doesn't have to be dirty: Replace coal, methane, and petroleum with nuclear, wind, solar, etc.
Earth

Fighting Climate Change With Trade 155

Posted by samzenpus
from the passing-on-the-savings dept.
mdsolar writes with this story about the possible elimination of tariffs on environmental goods between the world's largest economic powers. The United States, the European Union, China and 11 other governments began trade negotiations this week to eliminate tariffs on solar panels, wind turbines, water-treatment equipment and other environmental goods. If they are able to reach an agreement, it could reduce the cost of equipment needed to address climate change and help increase American exports. Global trade in environmental goods is estimated at $1 trillion a year and has been growing fast. (The United States exported about $106 billion worth of such goods last year.) But some countries have imposed import duties as high as 35 percent on such goods. That raises the already high cost of some of this equipment to utilities, manufacturers and, ultimately, consumers. Taken together, the countries represented in these talks (the 28 members of the E.U. negotiate jointly, while China and Hong Kong are represented by separate delegations) account for about 86 percent of trade in these products, which makes the potential benefit from an agreement substantial. Other big countries that are not taking part in these talks, like India, South Africa and Brazil, could choose to join later.
Education

Geographic Segregation By Education 230

Posted by Soulskill
from the philosophy-majors-in-philly,-music-majors-in-singapore dept.
The wage gap between college-educated workers and those with just a high school diploma has been growing — and accelerating. But the education gap is also doing something unexpected: clustering workers with more education in cities with similar people. "This effectively means that college graduates in America aren't simply gaining access to higher wages. They're gaining access to high-cost cities like New York or San Francisco that offer so much more than good jobs: more restaurants, better schools, less crime, even cleaner air." Most people are aware of the gentrification strife occurring in San Francisco, but it's one among many cities experiencing this. "[Research] also found that as cities increased their share of college graduates between 1980 and 2000, they also increased their bars, restaurants, dry cleaners, museums and art galleries per capita. And they experienced larger decreases in pollution and property crime, suggesting that cities that attract college grads benefit from both the kind of amenities that consumers pay for and those that are more intangible." The research shows a clear trend of the desirable cities becoming even more desirable, to the point where it's almost a necessity for city planners to lure college graduates or face decline.
Science

When Beliefs and Facts Collide 725

Posted by samzenpus
from the what-do-you-think dept.
schnell writes A New York Times article discusses a recent Yale study that shows that contrary to popular belief, increased scientific literacy does not correspond to increased belief in accepted scientific findings when it contradicts their religious or political views. The article notes that this is true across the political/religious spectrum and "factual and scientific evidence is often ineffective at reducing misperceptions and can even backfire on issues like weapons of mass destruction, health care reform and vaccines." So what is to be done? The article suggests that "we need to try to break the association between identity and factual beliefs on high-profile issues – for instance, by making clear that you can believe in human-induced climate change and still be a conservative Republican."
Earth

Climate Change Prompts Emperor Penguins To Find New Breeding Grounds 215

Posted by samzenpus
from the moving-to-better-quarters-on-campus dept.
An anonymous reader writes Researchers have discovered that emperor penguins may not be faithful to their previous nesting locations, as previously thought. Scientists have long thought that emperor penguins were philopatric, returning to the same location to nest each year. However, a new research study showed that the penguins may be behaving in ways that allow them to adapt to their changing environment. Lead author Michelle LaRue said,"Our research showing that colonies seem to appear and disappear throughout the years challenges behaviors we thought we understood about emperor penguins. If we assume that these birds come back to the same locations every year, without fail, these new colonies we see on satellite images wouldn't make any sense. These birds didn't just appear out of thin air—they had to have come from somewhere else. This suggests that emperor penguins move among colonies. That means we need to revisit how we interpret population changes and the causes of those changes."
Education

Teaching College Is No Longer a Middle Class Job 538

Posted by Soulskill
from the dollars-and-sense dept.
An anonymous reader writes When you think of people who teach at a college, you probably imagine moderately affluent professors with nice houses and cars. All that tuition has to go into competitive salaries, right? Unfortunately, it seems being a college instructor is becoming less and less lucrative, even to the point of poverty. From the article: "Most university-level instructors are ... contingent employees, working on a contract basis year to year or semester to semester. Some of these contingent employees are full-time lecturers, and many are adjunct instructors: part-time employees, paid per class, often without health insurance or retirement benefits. This is a relatively new phenomenon: in 1969, 78 percent of professors held tenure-track positions. By 2009 this percentage had shrunk to 33.5." This is detrimental to learning as well. Some adjunct faculty, desperate to keep jobs, rely on easy courses and popularity with students to stay employed. Many others feel obligated to help students beyond the limited office hours they're paid for, essentially working for free in order to get the students the help they need. At a time when tuition prices are rising faster than ever, why are we skimping on the most fundamental aspect of college?

The other line moves faster.

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