Friday, June 1, 2012

Geoengineering for global warming: Increasing aerosols in atmosphere would make sky whiter

ScienceDaily (May 31, 2012) ? One idea for fighting global warming is to increase the amount of aerosols in the atmosphere, scattering incoming solar energy away from Earth's surface. But scientists theorize that this solar geoengineering could have a side effect of whitening the sky during the day. New research from Carnegie's Ben Kravitz and Ken Caldeira indicates that blocking 2% of the sun's light would make the sky three-to-five times brighter, as well as whiter.

Their work is published June 1st in Geophysical Research Letters, a journal of the American Geophysical Union.

Carbon dioxide emissions from the burning of coal, oil, and gas have been increasing over the past decades, causing Earth to get hotter and hotter. Large volcanic eruptions cool the planet by creating lots of small particles in the stratosphere, but the particles fall out within a couple of years, and the planet heats back up. The idea behind solar geoengineering is to constantly replenish a layer of small particles in the stratosphere, mimicking this volcanic aftermath and scattering sunlight back to space.

Using advanced models, Kravitz and Caldeira -- along with Douglas MacMartin from the California Institute of Technology -- examined changes to sky color and brightness from using sulfate-based aerosols in this way. They found that, depending on the size of the particles, the sky would whiten during the day and sunsets would have afterglows.

Their models predict that the sky would still be blue, but it would be a lighter shade than what most people are used to looking at now. The research team's work shows that skies everywhere could look like those over urban areas in a world with this type of geoengineering taking place. In urban areas, the sky often looks hazy and white.

"These results give people one more thing to consider before deciding whether we really want to go down this road," Kravitz said. "Although our study did not address the potential psychological impact of these changes to the sky, they are important to consider as well."

There are several larger environmental implications to the group's findings, too. Because plants grow more efficiently under diffuse light conditions such as this, global photosynthetic activity could increase, pulling more of the greenhouse gas carbon dioxide out of the atmosphere. On the other hand, the effectiveness of solar power could be diminished, as less sunlight would reach solar-power generators. "I hope that we never get to the point where people feel the need to spray aerosols in the sky to offset rampant global warming," Caldeira said. "This is one study where I am not eager to have our predictions proven right by a global stratospheric aerosol layer in the real world."

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:


Story Source:

The above story is reprinted from materials provided by Carnegie Institution.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. Ben Kravitz, Douglas G MacMartin, Ken Caldeira. Geoengineering: Whiter Skies? Geophysical Research Letters, 2012; DOI: 10.1029/2012GL051652

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

demi moore and ashton kutcher demi moore and ashton kutcher jerry sandusky interview white house shooting internet censorship sveum benetton ads

Outdoor Technology DJ Slims


Not unlike many of the headphones offered by, say, Skullcandy, Outdoor Technology's designs have a certain extreme sports aesthetic. The company's logo is a silhouette of a Yeti-like creature, and it appears prominently on the thick headband for the eye-catching DJ Slims. At $69.95 (direct), I admittedly didn't have super-high expectations for the DJ Slims' audio performance, but the Bluetooth-streaming headphones offer surprising quality in this price range. Ease-of-use (as both headphones and a headset for wireless phone calls), an outdoor-friendly design, and comfort are all added bonuses. But the flashy design?which even features a flashing indicator light when paired?won't appeal if you want to blend in, whether outdoors or on, say, public transportation.

Design
Like the SOL Republic Tracks ($99.99, 4 stars), the DJ Slims' most obvious design trait is its wide, flat headband. Offered in black, white, or blue, the DJ Slims' headband has a matte rubberized finish, and the same twistable, but seemingly unbreakable build. As the company name suggests, these headphones are designed to be worn outdoors, so they can take a little bit of a beating and some dirt, but they're not waterproof. The rectangular foam earpads look a little flimsy, but the DJ Slims are not exactly priced like a luxury headphone, and when you put them on, you won't care?they're extremely comfortable, and the supra-aural (on-ear) design doesn't cause fatigue over long listening sessions. A significant level of audio will bleed out, however, since the earpads create no seal around the ears. Outdoor Technology DJ Slims inline

On the right ear, there is a control pad, with a multi-function button in the middle that serves as the Power button, as well as the control for pairing and call-answering and -ending. Four controls surrounding it raise or lower the volume, or skip tracks forward or backward. It's easy to operate these buttons blindly, but at first, you might find yourself skipping when you intend to raise the volume. The microphone is located on the underside edge of the right ear, next to the jack for the power cable. A USB charging cable is included, but no AC adapter, which means you can't charge the DJ Slims without a computer or USB charger handy.

The blinking blue light on the right ear, an indicator that the DJ Slims are properly paired, is a bit annoying, but not to you, since you will rarely see it. And if you happen to be in the great outdoors using the DJ Slims at dusk or later, the blinking light strikes me as a fine announcement to the natural world of your presence. Other than smitten fireflies coming over to investigate, I doubt it would cause any real issues?it just seems like an unnecessary design element.

Performance
From an audio performance standpoint, the DJ Slims offer far better sound than I expected for its modest price. There's a nice low frequency response that doesn't distort, even on deep bass tracks, at least until you reach maximum volume on both your sound source and the headphones?and even then, this distortion is subtle enough that it isn't very noticeable. Plenty of headphones can't handle the deep bass of The Knife's "Silent Shout" at high volumes, but this was not an issue for the DJ Slims. Only at a completely maxed-out volume did we encounter a hint of distortion. You shouldn't be listening at this volume anyway, so it's not a huge problem, particularly when you factor in the budget price.

On classical tracks, like John Adams' "The Chairman Dances," the bass response adds a bit of depth to the lower register strings and percussion, while the overall frequency response provides an articulate listening experience?not overly bright, never muddy, and generally fairly clear. Bill Callahan's vocals on his most recent record, Apocalypse, are both crisp and resonant here. Those familiar with higher-end headphones won't mistake the DJ Slims for a flat-response pair, but for $70, they sound fantastic?and it's easy to forget that you're listening to a Bluetooth stream.

The pairing process is a piece of cake?I hooked up an iPhone 4S in a matter of seconds. Like most Bluetooth headsets, the range is about 30 feet, but it's possible to encounter some dropout before then. If the phone is in your pocket or backpack, however, this seems very unlikely?we didn't have any dropout issues within 20 feet. Call clarity is not magnificent, but cell phone calls rarely are, and the microphone is placed well enough so that your call partner can understand you?though outdoors, the wind can wreak a bit of havoc. Outdoor Technology claims the DJ Slims should get 8-9 hours of audio playback on a full charge, and the headphones take about three hours to fully charge.

It's a rare thing for such an affordable pair to offer such quality audio, Bluetooth or wired. Still, if you want better audio performance, the wireless Phiaton PS 20 BT ($149, 4 stars) sounds great, adding a bit more clarity and low-end presence than the DJ Slims possess. This comes at a higher price, however, and with a slightly annoying shirt clip compartment. Very few in-ear stereo Bluetooth headsets offer quality audio without a shirt-clip compartment to house the Bluetooth receiver, but Sony's XBA-BT75 ($299.99, 3.5 stars) do. Of course, that's a lot to pay for a Bluetooth pair when there are perfectly serviceable options like the DJ Slims out there. If you're on a budget, want quality audio performance, and don't mind the design, the DJ Slims are a great value.

More Headphone Reviews:
??? Senta-40 Wood Headphones by C. Crane
??? Outdoor Technology DJ Slims
??? Tivoli Audio Radio Silenz
??? Bowers & Wilkins P3
??? MEElectronics A161P
?? more

king arthur king arthur there will be blood there will be blood nigel barker 420 secret service

Thursday, May 31, 2012

Plane slides off runway at Chicago airport

By NBCChicago

Updated 1:15 p.m. ET -- An American Eagle plane slid off the runway Thursday morning at O'Hare International Airport.

Chicago Department of Aviation spokeswoman Karen Pride said American Eagle Flight 4069 departed for Tulsa reported mechanical problems after takeoff and turned back toward the airport.


The plane landed, Pride said, veered onto the grass, then onto the pavement.

The Chicago Fire Department confirmed no injuries were reported. American Eagle spokeswoman Mary Frances Fagan said 28 passengers and three crew members were taken to the terminal by buses and were being "re-accommodated."

Fagan said the plane's captain decided to return to O?Hare because of an indicator light in the cockpit.

"An emergency was declared, as per procedure,"?Mary Frances Fagan said in a statement. "The aircraft landed on the runway at ORD at 8:38 a.m. and then veered off onto a cargo taxiway."

American Airlines said Flight 4069 was scheduled to depart again at 11:08 a.m. to Tulsa.

The same aircraft made an emergency landing yesterday for a similar issue, according to NBC News' Jay Blackman.

American Airlines told Blackman that the plane, which was scheduled to fly from O'Hare to Bradley International Airport in Connecticut, was taken out of service and went through "rigorous testing" before it was put back into service.

Passengers on other flights at O'Hare told NBC?Chicago the incident is a little disconcerting.

"It makes us a little nervous,"?said passenger Jason Gulting on his way to Traverse City, "but we still have to go places."

"It doesn't bother me," said passenger Roni Gray.

It's not known if weather was a factor in the incident. Rain is expected to continue on and off throughout the day.

This is the second incident in as many days at O'Hare. On Wednesday, a 747 cargo jet clipped the tail of an American Eagle regional jet that was completing its arrival at a gate. No injuries were reported in the incident.

This story originally appeared on NBCChicago.

More from msnbc.com:

kirk cameron friday the 13th news 10 hillary rosen j.k. rowling j.k. rowling axl rose

Wednesday, May 30, 2012

McGill university student plan provides healthcare to rural areas with Windows Phone and Win 8

McGill university student plan provides healthcare to rural areas with Windows Phone and Win 8

Those of us living in metropolitan areas don't think twice about our ease of access to medical care, but those in rural areas don't enjoy such easy access to a doctor. Abhijeed Kalyan and Shravan Narayan from McGill University in Canada are aware of this problem, and came up with a way for doctors to diagnose and treat patients from afar. Called Project Neem, it's got a hub and spoke organizational structure that puts a healthcare worker in every village and leverages the power of Windows Phone to connect them with medical staff in distant cities.

Participating healthcare workers are given basic medical training and a handheld loaded up with a custom app that identifies patients by scanning their national ID card and stores their pertinent medical info -- from temperature and blood pressure readings to a variety of symptoms. The app has a virtual human body on board that lets users tap parts of the anatomy to bring up a series of symptoms that can be selected to provide treating physicians with the info they need. That information is stored in the cloud and accessed by doctors through a Windows 8 app, who then can relay appropriate treatments to the local healthcare worker. Now all we need is someone to make a real-world tricorder, and we'll truly be able to bring medical care to the masses, wherever they may be.

McGill university student plan provides healthcare to rural areas with Windows Phone and Win 8 originally appeared on Engadget on Tue, 29 May 2012 06:44:00 EDT. Please see our terms for use of feeds.

Permalink   |  sourceGo DevMENTAL  | Email this | Comments


mr rogers jamie lee curtis spring equinox audacious pollen count mexico city first day of spring

Saving Dominican forest and an elusive songbird

In this May 22, 2012 photo, a road crosses through an agricultural area of a forest in San Francisco de Macoris, Dominican Republic. Conservationists are establishing a sanctuary that they say will be like no other in the Dominican Republic, blending sustainable agriculture with preservation on former pasture land at the edge of a cloud forest that will help protect a songbird called Bicknell's thrush which migrates each year from the northeastern U.S. and southern Canada. (AP Photo/Ricardo Arduengo)

In this May 22, 2012 photo, a road crosses through an agricultural area of a forest in San Francisco de Macoris, Dominican Republic. Conservationists are establishing a sanctuary that they say will be like no other in the Dominican Republic, blending sustainable agriculture with preservation on former pasture land at the edge of a cloud forest that will help protect a songbird called Bicknell's thrush which migrates each year from the northeastern U.S. and southern Canada. (AP Photo/Ricardo Arduengo)

FILE - In this July 2005 file photo released by the Vermont Center for Ecostudies, a Bicknell's thrush perches on East Mountain in East Haven, Vermont. The songbird that wings its way each year from austere mountaintops of the northeastern U.S. to the steamy forests of the Caribbean has inspired the creation of what conservationists hope will be a new model for nature reserves in the Dominican Republic, a country that has long struggled with deforestation. (AP Photo/Vermont Center for Ecostudies, Steven D. Faccio, File)

In this May 22, 2012 photo, a worker shovels cocao beans, the raw material in chocolate, as they dry in the sun in San Francisco de Macoris, Dominican Republic. Conservationists are establishing a sanctuary here that they say will be like no other in the Dominican Republic, blending sustainable agriculture with preservation on former pasture land at the edge of a cloud forest that will help protect a songbird called Bicknell's thrush which migrates each year from the northeastern U.S. and southern Canada. (AP Photo/Ricardo Arduengo)

In this May 22, 2012 photo, Luis Duarte fills bags with soil in an agricultural area of a forest in San Francisco de Macoris, Dominican Republic. Conservationists are establishing a sanctuary here that they say will be like no other in the Dominican Republic, blending sustainable agriculture with preservation on former pasture land at the edge of a cloud forest that will help protect a songbird called Bicknell's thrush which migrates each year from the northeastern U.S. and southern Canada. (AP Photo/Ricardo Arduengo)

In this May 22, 2012 photo, a worker walks through an agricultural area of a forest in San Francisco de Macoris, Dominican Republic. Conservationists are establishing a sanctuary here that they say will be like no other in the Dominican Republic, blending sustainable agriculture with preservation on former pasture land at the edge of a cloud forest that will help protect a songbird called Bicknell's thrush which migrates each year from the northeastern U.S. and southern Canada. (AP Photo/Ricardo Arduengo)

(AP) ? An elusive songbird that wings its way each year from austere mountaintops of the northeastern U.S. to the steamy forests of the Caribbean has inspired the creation of what conservationists hope will be a new model for nature reserves in a country that has long struggled with deforestation.

The reserve is taking shape in a lushly overgrown former cattle ranch measuring about 1,000 acres, at the edge of a deep green forest in the Dominican Republic's rugged northeast. Conservation-minded Dominican and U.S. investors have acquired the plot as a pilot project, hoping to protect what they say is a global biodiversity hotspot that's home to dozens of threatened species.

Tentatively known as the Reserva Privada Zorzal, the government sees the reserve as a potential example, showing that such land can be put to better uses than burning down the trees to convert it to pasture, a typical approach in this Caribbean country with only about 40 percent of its forest cover left. Neighboring Haiti, which shares the island of Hispaniola, has virtually none of its forest standing.

Jesus Moreno, a Dominican businessman whose family is partially funding the reserve, says the portion of the property where most of the trees have already been removed is well-suited to low-intensity, organic agriculture. He plans to grow macadamia trees and cacao, the raw material in chocolate, while allowing the forest to regenerate, in perpetuity, on three-fourths of the holding. The country's environment minister is scheduled to inaugurate the reserve project on June 5.

"I am not trying to make this into a big business and make a lot of money," said Moreno, whose family's ventures also include a nursery that grows macadamia trees and the country's only factory processing the nuts. "We are trying to create a model and break the cycle of destruction."

The concept of setting aside private land for conservation in land trusts or easements is an old one, long in use in the U.S. and elsewhere, but still rare in the Dominican Republic, a largely poor country.

Some private landowners have set aside tracts for ecotourism and nature reserves, and the government has designated more than 130 public reserves. But much of the country's forests face threats from development, agriculture and illegal timber harvesting, carving what remains into ever smaller chunks that leave species isolated and vulnerable.

In practice, the government reserves usually provide protection to endangered species in name only, said Sesar Rodriguez, the executive director of the Dominican Environmental Consortium.

Among those species at risk is the zorzal migratorio, known in English as the Bicknell's thrush. The palm-size, brownish songbird mostly comes out at dusk or dawn and, like many birds, heads south in the winter. It divides its time between the Caribbean islands and mountaintop forests in the northeastern U.S. and southern Canada that generally rise above 3,000 feet.

The bird is considered vulnerable, with an estimated fewer than 100,000 in the wild, because it occupies a narrow range of habitat that's under pressure on both sides of its migratory route, said Chris Rimmer, an ornithologist at the Vermont Center for Ecostudies who is an expert on the Bicknell's thrush and helped establish the reserve. Threats to the species in the U.S. include air pollution and loss of the conifer forest habitat from development and climate change.

It's not a high-profile species likely to spur public passions, and some bird species in the Dominican Republic are under a more dire threat, Rimmer readily acknowledges. But he and others are nonetheless devoted to the Bicknell's thrush, what he calls an "enigmatic" bird.

"It's much bigger than just this one little migratory songbird," Rimmer said. "If we protect it we automatically protect all the other elements of the flora and fauna, many of which are themselves under siege."

The Cordillera Septentrional range, a mist-shrouded cloud forest that shimmers an emerald green in the distance from the former pasture acquired for the reserve, is also considered habitat for vulnerable species such as the Hispaniolan parrot and mammals such as the Hispaniolan solenodon, a nocturnal burrower that resembles a possum with a long snout.

Rimmer, for one, has spent countless hours studying the Bicknell's thrush in the granite mountains of New England and the dense forests of the Dominican Republic, listening for its nasal, swirling call. "It's kind of ethereal, I guess, kind of mysterious," he said of the sound.

He and other researchers noticed that as the Dominican Republic was losing forest, female Bicknell's were being crowded out of their prime habitat by the larger males, depriving them of food they need for the journey back to North America.

He began working with the Dominican Environmental Consortium and others to find a way to expand two areas designated as protected by the government ? the Loma Quita Espuela, which Moreno's father helped found, and the Guaconejo reserves.

This loose-knit group eventually found land owned by the family of an elderly doctor that was just a few miles west of the Loma Quita Espuela reserve, prime habitat for the thrush and near the country's cacao-growing center of San Pedro Macoris, a combination of factors that seemed perfect for a blend of profit and preservation, said Charles Kerchner, an American working as a project manager for the consortium. Part of the land was still an active cattle ranch, the rest already in various stages of regrowth and some had been left untouched for so long that it had become fairly healthy secondary growth forest - not virgin, by any means, but not bad.

Most of the money for Reserva Privada Zorzal came from the Eddy Foundation of Willsboro, New York, and Moreno's family, which previously owned a controlling stake in the Helados Bon chain of ice cream stores in the Dominican Republic and neighboring Haiti, Kerchner said.

Danneris Santana, a vice minister in the natural resources ministry, said about a dozen new private reserves are in process of getting approval under regulations that were updated last year. Moreno and others involved in the zorzal project say several landowners in the vicinity of their site are close to adopting similar plans.

"While it's great that we are doing (the Zorzal reserve), it's an isolated project and we need others to protect their land as well," Kerchner said.

Much will depend on the economic viability of the effort. Besides the macadamia and cacao, Kerchner said they are looking for other sustainable uses of the surrounding forest, such as honey production and high-end chocolate.

The Dominican Republic is already a producer of organic cacao in the fertile hills around San Francisco de Macoris and has a growing macadamia nut crop, but the country is not a significant global supplier of either commodity. Most of the world's cacao comes from Africa and Indonesia; Hawaii and Australia are the main producers of macadamia nuts.

The backers of the project expect to allow public access but the plans are not yet defined. The property is more than an hour's drive along a bone-jarring road from the nearest town.

"To be a sustainable business, we need to get value from this forest," Kerchner said.

Associated Press

team america snow day snow day neti pot iron chef bath and body works coupons jeff probst

Perfect Meditating - Self Improvement Adventure of a Lifetime

Progress in meditation can be hard to define. The literature on developing single-pointed focus talks about ?stages of tranquil abiding? which detail the ?refinements in the process? rather than ?highlights of achievement?. From my experience, here are a few steps along the way you may notice?

1. Baby Steps

photo of baby trying to catch a beachballThe first encounter with meditation of this sort usually finds us like the baby with whom we want to play ?catch the ball?. At first, despite using a beach ball that is almost a balloon, the baby cannot catch the ball and it just bounces off them. In a similar way, the new meditator finds they only get a glimpse of the object of meditation (eg: nostrils) and their mind flies immediately off to some memory, or starts listening to a not-so-interesting-but-suddenly-intriguing sound, etc.

2. Two Steps Forward, One?

photo of man on spiral staircaseOnce we start being able to hold the ball, we get into the slippery, oily ball situation (as previously mentioned in the article: Slip Sliding, Greasy Ball). Here, we are able to catch the ball, but we cannot hold onto it for long ? seconds. So, we are able to find our object of meditation but the bubbles of stress keep dragging us away. Despite the feelings of frustration, this is wonderful, as we are releasing tons of stress! And the feelings of frustration may be part of the ?emotional stress? we are releasing.

3. Stepping up

We may notice we are holding on to the ball for longer (maybe a minute or two) and we are experiencing some of the effects of absorption from time to time. As this progresses, we need to be careful we are not trying too hard to keep a hold of the object of meditation.

TIP:
Every couple of minutes, relax slightly and check your posture, check for any tension and relax your body, then re-find your object with less force (but just as much clarity).

4. Clear Steps

Once you stop dropping the ball completely, the process becomes one of refinement. You will notice your mind is full of thoughts and busy listening out for the minutest sounds etc., even though you are able to continually observe the tactile sensations at the nostrils throughout the meditation.

This is a very advanced step and you are well on your way to attaining the Perfection of Concentration. The main efforts are now to make the object clearer and watching out for when it becomes less clear.

Slipping back can happen at any time

photo of man sliding down shute by a spiral staircaseAt any time during the above steps we may feel we have gone back to the baby steps. This may be due to a big bubble of stuff being released during a meditation session (or a few in a row!), so we are clearing a whole layer of stuff.

At any time we may get the feeling we have gone back a few steps because our mind seems to have gone wild? This could either be because we have released some deep stress which is temporarily disturbing our mind, or it may be we are becoming more aware of the subtle ways our mind continuously distracts itself! Either way, it is wonderful news.

Perfect Meditating

We can only reach the Perfection of Concentration through the process of finding, loosing, then re-finding our object of meditation, and later refinements to the process.

Whenever we sit down to meditate, no matter what step we are at, or even if we feel we have taken a step backward, as long as we are taking the effort to try to find our object of meditation (whether we find it or not) it is a perfect meditation!

Share this article

bowling green marysville tornados dr. seuss dr seuss the temptations rush limbaugh sandra fluke

Blogging relationships and the process of thinning ? heart to heart

We have 80? different apple trees on our property.

They are a sight to behold when they are all laden with fruit?.

These are pictures from 2009 and 2010:

Ginger gold

Red Delicious

_________________________________________

I was out in the orchard today checking on the 2012 crop.

Noticed they are about ready to go through their thinning process :

I took this picture this afternoon.

If you look really closely, there are larger apples as well as little tiny ones.

Just to give you an idea, the larger ones are about the size of a quarter?the smaller apples will drop off in the next week or two so that the tree will pour it?s energy into the apples that remain.

I?ve been blogging since 2007.

Hard to believe.

Noticed on my counter this morning there have been over 300,000 hits, whatever that means ;-)

During this time my wife and I have become friends with people literally from around the globe.

I?ve met 4 of you in person, in some cases more than once.

A handful of you are also friends on face book, so that has added another dimension to our interactions.

I have been very intentional from the very beginning to include my wife in all of my interactions on line.?? We share the same e-mail address, same Face book account, etc.? Most of us have heard accounts of people running off with someone they ?met? on line.? Unfortunately? that sort of thing happens in a broken world.

and I don?t want it to ever? happen to me?.

If you think it could never happen to you, then the slide has already been greased.

Once in a while I will meet another blogger and really ?click??a genuine friendship begins to form? but then one day, when I log on to visit their blog? poof..they are gone,? no notice..just gone?.always leaves me a little sad?.

That happened again this week.

I am tempted to feel like Puff the Magic Dragon..where the little boy sudden stops coming to visit?

Fortunately for me,

I am surrounded by several loving nurturing relationships?..both on line as well as in person.

I thought about the apple tree? and its ability to only grow so many apples in a season?

Those of us that blog, blog for different reasons?.

So tell me, if you?re a blogger, why do you blog?

If you?re not a blogger but enjoy reading blog posts..what do you get out of it?

Is it possible to have genuine friendships with people and never meet them in person?

Do you have any friendships that started on line and matured into something significant in your life?

Like this:

5 bloggers like this post.

Tags: Christianity, family, friendship, Life, loneliness, love, personal, relationships, self esteem, spirituality

homeland packers giants game golden globe winners 2012 ricky gervais golden globes epidermolysis bullosa miss wisconsin law abiding citizen