April 4, 2017: Over the past decade, scientists and photographers keep returning to the world’s glaciers, watching them shrink with each visit. Now they want others to see how a warming planet is melting masses of ice in a series of before-and-after photos.
In the Geological Society of America’s GSA Today journal , a group of ice researchers and a photographer-filmmaker published pictures showing how much five of the world’s glaciers have thinned.
“There is something fundamentally compelling about the approach they take. For all our emphasis on models and math, seeing is still believing,” said University of Colorado ice scientist Ted Scambos, who wasn’t part of the team.
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Under natural conditions, glaciers at times melt and retreat while others grow and advance. But measurements from Earth’s 5,200 glaciers show warming temperatures have increased the number of melting glaciers and the speed of glacial retreat, according to the study. Scientists primarily blame man-made global warming from the burning of coal, oil and natural gas.
“There is something that touches the heart more profoundly when you see it in pictures than when you see it in maps or reports or graphs,” said photographer James Balog, who founded the nonprofit Earth Vision Institute . “It certainly brings it alive.”
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The Solheimajokull glacier has shriveled by about 2,050 feet (625 meters) between 2007 and 2015.
The forward edge of the Mendenhall glacier outside of Juneau has receded about 1,800 feet (550 meters) between 2007 and 2015.
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The Stein glacier has shrunk about 1,800 feet (550 meters) between 2006 and 2015.
The Trift glacier has retreated nearly three quarters of a mile (1.17 kilometers) between 2006 and 2015.
Ohio State ice scientist Lonnie Thompson has visited the Qori Kalis glacier since 1974. Between 1978 and 2016, it has shriveled 3,740 feet (1.14 kilometers). Thompson described his regular expeditions to the Peruvian glacier “like visiting a terminally ill family member.”
How many times has it happened that you longed for an exotic foreign trip, but gave up on the idea because of upsetting figures in your bank balance? Indian currency seems weak when compared to international currencies. Hence, planning a trip to New York or California is not easy; everybody knows these are expensive places and you will have to think twice before your NYC dreams come true.
But what if we tell you there are countries in the world that you can visit and gather equally thrilling and exotic experiences, at much lesser price?
Yes, there are countries that can be on your travel bucket list, where money will be the last thing you will worry about! These places are not only unique and undoubtedly beautiful, they are relatively cheap and our Indian currency will prove a stronger, higher currency when compared to their own currencies!
So, what are you waiting for? We bring you our top 5 picks for affordable travel destinations and you should get packing!
Sri Lanka is the first in our affordable travel destinations list!
Despite being extremely small in size, Sri Lanka is a heavenly abode that makes it to the post of top five biodiversity hotspots in the world!
Dive in with the blue whales or watch spinner dolphins play against the setting sun! Go on a wildlife safari and spend days playing with elephants in the water.
Sri Lanka is a haven for back-packers, packed with Dutch architecture from the times of Sri Lanka colonialists, and exotic scenic locales, it is closer to home and yet, everything that any far-off international destination could possibly offer!
1 INR (Indian Rupee) = 1.70 JPY (Japanese Yen)*
Cute buildings, cute people, cute food, and cute everything else! Second on our list of affordable travel destinations is Japan.
Food is an integral part of Japan, and something that the Japanese wholly embrace as a prime part of life.
Japan’s history is intrinsically linked to the Buddhist, Shinto, and Taoist faiths- the reason why a visit to Japan will be no less than a serene and tranquil experience.
Japan is categorically blessed with natural beauty with the country boasting of extremely rare and fascinating flora and fauna – experience the magnificence of Mt. Fuji in summer and spring, and visit the streets completely covered with cherry blossoms in March and April- Japan will present you with sights that will simply take your breath away!
Iceland convincingly makes it to the third spot on our affordable travel destinations list. Iceland is situated just below the Arctic Circle, which means the country has 24-hour daylight from mid-May to late July. Isn’t that already stimulating?
And who hasn’t heard of Iceland’s famous northern lights? The county is undoubtedly one of the world’s best places to witness the magic of the northern lights or aurora borealis. The best time to witness the magic of these celestial marvels from September to mid-April.
Iceland’s rich water supply is undoubtedly its most valuable natural resource. Why are we telling you about this? Iceland has natural pools that can be found all around the country, calmly seated in natural environment.
Fun fact : People of Iceland do not have surnames. They follow the traditional Nordic naming system in which a person’s name includes their father’s first name.
From its cosmopolitan cities to the charming countryside, Hungary will provide you with innumerable reasons to make a stop here. Nonetheless, it is going to be a decision you will not regret. From mouth-watering food to traditional folk culture, Hungary offers something for everybody, which is what brings the country on the fourth spot in our affordable travel destinations list.
Hungary’s countryside is filled with naturally magnificent sights- from natural landscapes in the Hortobagy National Park, to extravagant caves of Lillafured, your Hungarian vacation will be both peaceful and beautiful!
Hungary will be the best option if you’re looking for an affordable vacation – with affordable food, drink, and many of the country’s attractions being totally free to visit such as the Chain Bridge)
The last on the list of affordable travel destinations is Vietnam. With its fascinating history, succulent food, gorgeous beaches, old towns, islands and waters, Vietnam should definitely be on everybody’s bucket list.
Street food is a trademark of Vietnam and you will find countless food stalls on street sides throughout your trip that you can gorge on! Vietnam will also not disappoint mountaineers, or adventure seekers- you can either rent a motorbike and drive to the scenic mountains in the north or along the length of the country from north to south – but beware, this thrilling ride is not for the faint-hearted.
Don’t forget to share with us if you do plan a trip to any of these places!
Depending on the location, the proliferation of IS has drawn varied resistance from the Afghan military, U.S. air support and ground troops, local militias, Taliban forces and other militant groups
Afghan army planes on Wednesday night accidentally air dropped vital supplies of food and water to IS militants in the Darzab district of northern Jouzjan province instead of to their own besieged troops
In the Tora Bora area, where IS has made a strong stand in recent days, local villagers and militias joined with Taliban to rout IS
June 25, 2017: The Islamic State group is rapidly expanding in parts of Afghanistan, advancing militarily into areas where it once had a weak presence and strengthening its forces in core regions, according to Afghan and U.S. officials.
Depending on the location, the proliferation of IS has drawn varied resistance from the Afghan military, U.S. air support and ground troops, local militias, Taliban forces and other militant groups.
Attacking IS has become such a priority in the country, that disparate forces sometimes join together in the ad-hoc fight, with Afghan and U.S. forces finding themselves inadvertently supporting the enemy Taliban in battling IS.
Confusion leads to mistakes
All too often, officials say, mistakes are made due to confusion on the ground.
Afghan army planes on Wednesday night accidentally air dropped vital supplies of food and water to IS militants in the Darzab district of northern Jouzjan province instead of to their own besieged troops, provincial police chief, Rahmatullah Turkistani told VOA. The supplies were meant to help Afghan forces that are countering twin attacks by IS and Taliban militants but were used instead by IS.
“It’s not getting better in Afghanistan in terms of IS,” U.S. Chief Pentagon Spokeswoman Dana White told VOA this week. “We have a problem, and we have to defeat them and we have to be focused on that problem.”
Reinforcements for the IS cause reportedly are streaming into isolated areas of the country from far and wide. There are reports of fighters from varied nationalities joining the ranks, including militants from Pakistan, India, Iran, Iraq, Syria, Russia and Central Asian neighbors.
Still, the Islamic State-Khorasan (ISK) as IS is known in Afghanistan remains a fragmented group composed of differing regional forces with different agendas in different parts of the country.
“IS-K is still conducting low-level recruiting and distribution of propaganda in various provinces across Afghanistan, but it does not have the ability or authority to conduct multiple operations across the country,” a recent Pentagon report said. But where it operates, IS is inflicting chaos and casualties and causing confusing scenarios for disparate opponents.
In the Tora Bora area, where IS has made a strong stand in recent days, local villagers and militias joined with Taliban to rout IS. IS regained ground after a few days, leading to U.S. military air attacks on IS positions in conjunction with Afghan intelligence instructions and army operations.
IS fighters reportedly have fled from mountain caves of Tora Bora, where al-Qaida’s leader Osama bin Laden hid from U.S. attack in 2001.
IS fighters were also reportedly advancing in neighboring Khogyani district, displacing hundreds of families, according to district officials. It is one of several areas in Nangarhar province, near the Pakistani border, where IS has been active for over two years.
Fierce clashes in the Chaparhar district of Nangarhar last month left 21 Taliban fighters and seven IS militants dead, according to a provincial spokesman. At least three civilians who were caught in the crossfire were killed and five others wounded.
“IS has overpowered Taliban in some parts of Nangarhar because the Taliban dispatched its elite commando force called Sara Qeta (Red Brigade) to other parts of the country, including some northern provinces to contain the growing influence of IS there,” Wahid Muzhda, a Taliban expert in Kabul, told VOA.
IS has also expanded in neighboring Kunar province, where, according to provincial police chief, it has a presence in at least eight districts and runs a training base, where foreign members of IS, train new recruits.
Hundreds of miles from Nangarhar, IS is attempting to establish a persistent presence in several northern provinces where it has found a fertile ground for attracting militants and recruiting unemployed youths, mostly between the age of 13 and 20.
IS has been able to draw its members from the Pakistani Taliban fighters, former Afghan Taliban, and other militants who “believe that associating with or pledging allegiance” to IS will further their interests, according to the Pentagon report.
Hundreds of militants have joined IS ranks in northern Jouzjan and Sar-e-Pul province where local militant commanders lead IS-affiliate groups in several districts.
Qari Hekmat, an ethnic Uzbek and former Taliban militant who joined IS a year ago, claims to have up to 500 members, including around 50 Uzbek nationals who are affiliated with the Islamic Movement of Uzbekistan (IMU) — previously associated with al-Qaida and Taliban in Afghanistan.
IS and Taliban are reportedly fighting over the control of Darzab district in Jouzjan which they stormed this week from two different directions and besieged scores of government forces. The Taliban has reportedly captured the center of the district while IS militants control the city outskirts.
Afghanistan faces a continuing threat from as many as 20 insurgent and terrorist networks present or operating in the Afghanistan-Pakistan region, including IS, the Pentagon said.
“In areas where the government has limited influence and control, IS attempts to emerge and expand there,” Ateequllah Amarkhail, an analysts and former Army general in Kabul told VOA.
IS has also claimed responsibility for several recent attacks in urban areas, however, with a hit-and-hide strategy that is proving effective. And it is engaging too in more skirmishes with U.S. forces that initially were sent to the country to help Afghan forces halt the spread of Taliban.
Three American service members based in eastern Afghanistan were killed in April during operations targeting IS militants, according to the Pentagon.
“ISIS-K remains a threat to Afghan and regional security, a threat to U.S. and coalition forces, and it retains the ability to conduct high-profile attacks in urban centers,” the Pentagon said. (VOA)
An orbiting satellite has sent the first entangled pair of photons to Earth
It is a big step towards achieving a secure and developed way to encrypt communications
They can not be cracked by ever-improving computer algorithms
June 18, 2017: It was reported by scientists today that an orbiting satellite has sent the first entangled pair of photons to Earth. It is a big step towards sending quantum keys from satellites — an approach that has been heralded as a secure and developed way to encrypt communications because ever-improving computer algorithms can not crack them.
A laser on China’s Micius satellite, which was launched last year and is dedicated to researches related to quantum satellite communications, spit out pairs of entangled photons from its position, 500 km above Earth. Then two telescopes on Earth – about 1200 km apart — had 5 minutes each day to look for them as the satellite passed over both telescopes. It was found that paired photons survived the journey through Earth’s atmosphere. They detected 1 entangled pair per second out of the 6 million sent in that time.
So how exactly does all this work?
A quantum key needs to be generated first by two people who are looking to communicate. Then, one person receives one of the entangled photons in the pair, the other person receives the other. When the received photons have measured the photons, they obtain bits of information strung together to create a key that they both have. That key can be used to encrypt and decrypt a message. The users can also share a portion of the key publicly to check if it has been compromised. In case if someone tries to intercept the communication at any point, they would then notice a difference between their strings.
There is a certain set of problems as well. Caltech’s John Preskill believes even though it is an important proof of concept, the feat doesn’t address one of the biggest problems with quantum communications. Currently, these messages can’t be sent long distances. Photons, using an optical fiber to carry a quantum signal, can only make it about 100 km before the dissipation of the light.
Quantum systems are similar to optical telecommunications here on earth and need repeaters that are able to amplify the message so it can be passed long distances. But amplifying a quantum message in the same way optical ones are done would effectively result in the destruction of the information. That is why satellite-based communication are being eyed by researchers. The reported 500 km from space is an improvement over optical. Quantum signals were measured in another study published today from a satellite 38,000 km away to a single point. But in deploying a global network which would likely be able to combine optical fiber and satellites, the repeater problem still stands.
Preskill has predicted that it is more likely we will first come up with another form of encryption for communication. “There will be other ways of doing classical public key cryptosystems that we won’t know how to break with quantum computers,” he added.
– prepared by Durba Mandal of NewsGram. Twitter: @dubumerang