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14. How did Ira Glass learn about the recipe?
For almost 125 years, the secrecy surrounding the recipe for Coca-Cola has been one of the world’s great marketing tricks. As the story goes, the fizzy drink’s famous ‘7X’ formula has remained unchanged since it was developed in 1886. Today, the recipe is entrusted only to two Coke executives, neither of whom can travel on the same plane for fear the secret would go down with them.
Now, one of America’s most celebrated radio broadcasters claims to have discovered the Coke secret. Ira Glass, presenter of the public radio institution This American Life, says he has tracked down a copy of the recipe, the original of which is still supposedly held in a burglar-proof vault at the Sun Trust Bank in Atlanta, Georgia.
The formula was created by John Pemberton, an Atlanta chemist and former Confederate army officer who crafted cough medicines in his spare time. In 1887, he sold the recipe to a businessman, Asa Griggs, who immediately placed it for safekeeping in the Georgia Trust Bank.
Glass came across a recipe that he believes is the secret formula in a back issue of Pemberton’s local paper, the Atlanta Journal-Constitution, while he was researching an entirely different story. Tucked away on an inside page of the 8 February 1979 edition, he stumbled on an article that claimed to have uncovered the closely guarded 7X formula.
The column was based on information found in an old leather-bound notebook that belonged to Pemberton’s best friend and fellow Atlanta chemist, RR Evans. Glass was intrigued and, after some digging, found that the notebook had been handed down over generations until it reached a chemist in Georgia called Everett Beal, whose widow still possesses it.
The rediscovered recipe includes extract of coca leaves, caffeine, plenty of sugar (it specifies 30 unidentified units thought to be pounds), lime juice, vanilla and caramel. Into that syrup, the all-important 7X ingredients are added: alcohol and six oils –orange, lemon, nutmeg, coriander, neroli and cinnamon. The formula is very similar to the recipe worked out by Mark Pendergrast who wrote a history of the drink in 1993 called For God, Country & Coca-Cola.
Coke’s secret recipe is, in fact, partly a myth. The soda has changed substantially over time. Cocaine, a legal stimulant in Pemberton’s day, was removed from the drink in 1904 after mounting public unease about the drug. Extract of coca leaves is still used but only after the cocaine has been removed.
In 1980, the company replaced sugar, squeezed from beet and cane, with the cheaper corn sweetener that is often found in American food and drink. Coke fans were not impressed.
Despite such occasional controversies, one element has remained constant: Coke’s commitment to keeping its own secret. Speculation about the recipe has been a popular talking point for more than a century, proving good for business. The company has reacted to the This American Life story in a way that has been typical of its commercial strategy since the 19th century. “Many third parties have tried to crack our secret formula. Try as they might, they’ve been unsuccessful,” Coca-Cola’s Kerry Tressler said.
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To operate a driverless car, their owners will be required to …
1. have a special license.
2. set the destination on the GPS.
3. obtain a collision insurance.
4. have experience in programming.
Driverless cars
Driverless cars are expected to be rolling into the streets within the next 20 years. In fact, they’ve legally been on the roads for the past years, approved for testing purposes. It is predicted that driverless vehicles will be commercially available at a high cost within 7 years, but it may take another 8 years for prices to drop enough to spur mass consumption.
Today, the discussions focus primarily on the shifting of accident liability to manufacturers and all the goodness that comes along with reducing accidents. A truly driverless road would not be accident-free as there would still be a number of accidents caused by mechanical or computer errors, weather conditions, pedestrians and sheer random chance. But it would make the now-routine loss of life on the roads far rarer.
The concept of a “driver” will be replaced with that of an “operator”, who simply programs the vehicle’s GPS to arrive at the desired destination and pushes the “Start” button to begin the trip. Since judgment will no longer be required of the operator, they won’t need a driver’s license. Theoretically, a 10-year-old child could independently take the car to school in the morning.
Computer-operated cars will eventually reshape the car design as things like windshields will become less necessary. Drivers will be able to sit wherever they’d like in their cars. There will be no need for gas and brake pedals as speed will be automatically controlled by the computer. The steering wheel and the turn signal arm can also be eliminated once the public gets used to reliability of these vehicles.
Each passenger will have a personal video display informing about a current location, the distance to your destination, speed and personal entertainment selections. The concept of ‘distracted driving’ will disappear as there will be no reason to pay attention to where you are going.
Vehicle owners will no longer buy collision insurance since manufacturers will be solely responsible for damage. Owners will only need theft insurance and coverage for hail, falling objects or floods. To take this one step further, personal vehicle ownership may dramatically diminish. Car dealers will have lots full of vehicles for hire on a daily or hourly basis instead of vehicles for sale. When you need a car, you’ll summon one using your mobile phone. The closest unmanned vehicle will be dispatched to your home to take you where you need to go. When done, you’ll simply push the button for the unmanned vehicle to drive itself back to the rental lot.
The social and cultural impact of driverless cars could cause far more upheaval than any of us could imagine. Perhaps, it would be even greater than the impact the Internet had on commerce and communication. Obviously, the picture being painted is the one that assumes total adoption, which is far from realistic. You will always have transitional delays caused by the lack of free cars, the longevity of today’s vehicles and cultural resistance.
This resembles the historical factors that affected the transition from horse to the automobile. At the moment, the driverless car seems like a novelty. However, it will open up new prospects. The prospect of flying cars may soon become a reality. With computer-controlled vehicles that strictly follow traffic rules, three-dimensional roads become far less scary and more a matter of simply solving the technological challenge.
Where we’re going, we may not need roads at all.
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14. The author claims that her former self of the eighth grade would … her decision to quit social media.
1) be against
2) understand
3) support
4) be indifferent to
A year without social media: lessons learned
I have been on an extended vacation from millennial life: I deleted my primary social media accounts – Facebook, Twitter and Instagram – last December and spent the past year essentially disconnected from the social media world.
It happened on a family trip to Florida in December 2014, when I was more excited about the fresh photos and videos I would post instead of the actual vacation. Finally, on the last night of our trip, one of my videos did not upload correctly, and I reached my breaking point. I was frustrated with the pressures of maintaining a double life and afraid of how a device consumed and controlled me. I was annoyed and defeated, from chasing this perfect life online when I was facing so many struggles in real life.
I was feeling anxious and depressed and worthless and inadequate. I was far from OK, but on social media I was forced to say I was OK. I had reached the bottom of my suffering, and as a result, no action seemed too drastic. Getting off social media seemed like the easiest way to get a fresh start. Even though my former self, an eighth-grader who had begged her father for a Facebook profile, would have been astonished and angry.
At first, it was a little confusing. Suddenly I did not have Twitter or Instagram to rely on during times of boredom or awkward situations. I continued to constantly and desperately check my phone despite the lack of notifications.
By quitting mainstream social media, I was also more open to other “drastic” lifestyle choices. I graduated a semester early from high school, and although it had a positive impact on my life, I certainly would have regretted it or wavered on my decision had I been active on social media. I also began practicing yoga and started a new job working with children, both monumental for my healing. Without social media, they became things I did for me, not for the showing off or the photo opportunities.
My lifestyle without social media was enlightening, peaceful and uncomplicated because I had basically created a safe bubble for myself. I did not judge new friends based on their online profiles, and vice versa. I did not experience significant events through the lens of my camera. I did not rely on likes and favorites for self-validation and gratification.
At the time, escaping the online world was a necessary step to find peace and healing; however, I am ready to return to it.
Life without social media is simple, but it is safe. In the past year, I disassociated myself with the negative aspects of social media, but I also missed out on the benefits. I lost the creativity it takes to entertain an audience in 140 characters. I lost the need to capture important moments. I lost a subtle, but very significant social bond that ties us together.
I recently re-entered the public sphere, and it feels a lot like starting my life over from scratch. I am back to consuming news about my peers, back to wishing people “Happy Birthday” because Facebook said to do so, and back to collecting the Likes. But most importantly, I am back. Maybe I just have to learn to accept those flaws.
I used to view social media as this fake, easy solution to the difficulties of real life, but perhaps avoiding social media altogether was the easy way out. Living in a bubble was easier, and while I will miss the quiet, I know it does not reflect the real world. The real world is loud and messy and complicated, and sometimes we need a break from it to fully appreciate the beauty of chaos.
According to the text, we mostly consume the bananas which …
1. were grown in botanical gardens.
2. were picked on plantations in Costa Rica.
3. ripe naturally on banana trees.
4. are specially cultivated.
The truth about bananas
When I was in college, I had a professor who had some strange habits. Every now and then, this professor came to class with the sticker from a banana on his shirt. One day a student asked him what was with the stickers. He replied, solemnly, “Oh. Yeah. Well, whenever I have a banana for breakfast that has a sticker on it, I put the sticker on my shirt to remind me of the suffering of the banana pickers in Latin America, who sometimes earn just 50c for a 12-hour day of work in grueling conditions. I wear it to show my solidarity with them, as a silent protest for better treatment.” From that day on, we saw the professor in a completely new light and we started thinking about bananas differently too. As I was later to discover, almost nothing about bananas is as it seems.
On a trip to Costa Rica, the major exporters of bananas, I saw endless banana plantations and visited a botanical garden where a botanist shared some fascinating details about banana trees. He said there are about 300 varieties of banana, but only a small fraction is cultivated commercially. The edible type of banana grown in Costa Rica is a hybrid that is larger and sweeter than its naturally occurring ancestors.
Among the other interesting tidbits we learned was that banana “trees” are not even trees – they’re the world’s largest perennial herbs. The distinction is not merely academic; the stems, which may appear to be solid trunks, are simply multiple layers of very large leaves that could be cut through with a regular knife. In fact, the stems often break under the weight of the bananas and need to be supported with poles.
Bananas also have an unusual life cycle. Normally, the primary reason for a plant to bear any sort of fruit in the first place is to propagate itself, since the fruit contains the seed. Modern, commercial strains of banana don’t have seeds. Seedless fruit-bearing plants normally propagate only with human help, because the plant has no natural way to regenerate when it dies. Each banana plant produces just one bunch of fruit over its lifetime of about a year and then diesor at least appears to. But the stem above ground is just a portion of the plant, the so-called pseudostem. There is also an underground stem, called a rhizome, which produces new shoots at the base of the visible stem. These begin growing into new, flowering stems just as the old one is dying. The new plant, then, really isn’t new at all, and is genetically identical to its predecessor.
These peculiarities aside, bananas are simply tasty. They are also an excellent source of potassium and are extremely good for keeping scoops of ice cream aligned in a dish. Bananas have been referred to as “the world’s most popular fruit,” “the world’s most popular tropical fruit,” “America’s most popular fruit,” and a variety of other designations in the upper strata of fruit stardom, based on different metrics for assessing popularity. In any case, Americans,and much of the rest of the world, certainly consume immense quantities of bananas.
But what about banana pickers? I’m sorry to say it’s true. The life of the average banana picker is still rather bleak. But if the producers paid their workers a living wage, bananas would become so expensive that few people would buy them, thus reducing demand, and so on. For my part, I wear banana stickers just as my professor did, not because I think it will have any tangible impact, but to remind myself of the real price of bananas.
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14. Which of the following statements is true, according to the text?
Teenagers and hobbies
Nowadays the youth has troubles with forming the future. Hobbies give teenagers a chance to meet new people, discover new passions, develop skills outside of school, and do something all kids (yes, teens are part kid) should do: have fun. You don’t need peer-reviewed scientific studies to tell you that. But you might need a little reminder about adolescent development to drive home the importance of hobbies.
Two of the most important things that happen during the teen years are identity formation and differentiation. Identity formation is exactly what it sounds like: it’s the process of becoming an individual with an entire set of personal wants, needs, skills, and preferences. It’s quite a complicated period of life and the choice can be changed on a daily basis. Differentiation is part of identity formation, but – and this is crucial – differentiation is special. It’s the formation of an identity outside and apart from parents and family.
That’s where hobbies come in. Hobbies are a great way for teens to form an identity outside their family. And hobbies that take place after school hours can be even better. They also give teenagers a chance to forge their own path outside of the watchful eye of parents and teachers.
While in school, teachers act as an extension of the family. That’s the law of the land: both common law dating back centuries and the U.S. Supreme court holding that school officials can act in loco parentis, or in the place of the parents.
But things like sports and band are different: it’s common knowledge that figures like sports coaches and band directors – while they’re coaching or directing a band – are neither teachers nor parents. They help teens learn and grow in new and different ways, under a unique set of rules and norms – all while teaching them skills they don’t learn at home or in class.
In addition to facilitating basic psychological needs, hobbies benefit teens on many levels. Here’s a partial list. Some hobbies are just fun. And that’s what’s great about them. They’re no big deal. They’re not school, they’re not work, they’re not family: they’re just something fun to do to pass the time. And that’s one hundred percent okay. When you are pursuing a hobby, you are utilizing your free time in a better way. This keeps you busy and makes you conscious about the importance of time. Learning to manage time helps in leading a more disciplined lifestyle, and keeps you ahead in the game.
Everyone needs a way to while away the hours, relieve stress, and have a good time while doing so. That’s the amazing thing about hobbies: they can be just that – relatively inconsequential pursuits that make you feel good – but they can also be much more. They can be a template for accomplishment, achievement, and success. They can teach a teenager valuable life lessons that resonate across the decades and enrich life on physical, emotional, and psychological levels. When you look at hobbies that way, it’s a no-brainer: you can’t afford not to have one.
The most important thing the author learned during his travels was about …
1) balance.
2) responsibilities.
3) friendship.
4) freedom.
I’ve spent the last year wandering around the globe and exploring this wondrous thing called life. Through 26 flights, I’ve managed to circle the globe twice, and touch 5 of the 7 continents. It’s been an incredible experience. The journey led me from scuba diving for a month in Thailand to hitchhiking in African country. I’ve learned about the world and myself more than any book, teacher or person could tell me.
I’ve learned that the timing will never be perfect because rarely are we blessed with the perfect time to do something. When I was planning on leaving to travel for a year, it was never the “right time” when everything was going to be put on hold for my travels. I needed more money, or I would lose my job. I realized that I was never going to be “ready” to drastically change my life, as I was always going to have some new commitment or excuse. So I left at the “wrong time” in life and it turned out to be the best thing that happened to me. But once I got sick of missing out on things I wanted to do and see, I started to just do them anyway.
I’ve also learned that friendships are everything. I heard this one a lot before, but never really believed it that much. When I started looking back on my travels, I started to think “Wow, I’ve seen a heck of lot of cool places”. I tried to think back to my favorites, which ones did I enjoy the most? They were always the ones where I had the best friends and really had nothing to do with where I was. The people around you contribute a great deal to your overall happiness. It was only when I had no friends that I realized their importance.
When travelling, you have complete freedom to literally do anything you want. You can relax everyday on the beach, you can be alone every day in your room, you can eat ice cream for breakfast every day, and you can drink all the time. This freedom can be quite liberating, but many people have a tough time balancing the party/drinking/vacation aspect with truly seeing and experiencing each country, because you have no responsibilities and no one around to tell you when you can’t do something. I too fell into a similar kind of trap. I indulged in so many aspects of life. I took everything to the extreme until it had lost its excitement. I realized that balance was the key.
Another lesson I have learned is that life doesn’t have to be “normal”. Go to school, get a job, or buy a big house. When anyone strays from this path they are considered to be not “normal”. It’s only when I started traveling that I saw that a fulfilling and happy life isn’t always a respectable job, with a big house and lots of money. I began to meet interesting characters from all over the world and saw firsthand how they had gone “against the grain” and succeeded. There are tons of other ways to live a fulfilling and happy life, but most of us have only seen the “big house” scenario. I saw and experienced how happy people are doing something completely different than normal jobs, because they get to wake up every day and do what they want to do in the place they want to be.
So, while travelling I realized that you can read about things, watch them on TV, or hear stories from a friend, but nothing comes close to first-hand human experience. You get a whole new perspective on what really matters and you feel this sense of adventure and excitement that reminds you just how many possibilities you have in life. To anyone who has not travelled, do it. And to those who have, continue to do so. It will teach you more about yourself and the world around you than you could ever imagine.
14. Todd and his wife didn’t worry that they had no money to honeymoon in Paris because
1) they had already been there.
2) they planned to go there the following year.
3) they didn’t want to go there.
4) they were ready to earn money for this trip
Today was a rice day, fifty pound sacks of white rice in trucks bearing an elephant logo. The same happy elephant appeared on the bags, its head raised to the sky, the trunk curved like an S. ‘Elephant,’ Todd said. He said it because a labourer was staring at it intently, which meant he wasn’t working. ‘That’s right,’ the man said. ‘I couldn’t remember the word.’ He was the only other human at the loading dock this morning. The man didn’t have a name, just a number, like the rest of the robots.
That could be me, Todd thought as he watched him work side by side with his silent mechanical counterparts, lifting, carrying, and dropping bags of rice from the back of the truck to the warehouse. A bad car accident, a bad fall from a ladder, and that could be me. Or a bad memrip.
At lunch, Todd thought of things he could sell. Everything he owned of any value, he could touch: his grandfather’s watch, his grandmother’s wedding ring, a gold necklace be longing to some forgotten relative. His car, too, but that was out of the question as he needed it to work. He got up from his chair and scanned the floor below, the robots still working away, a sea of metallic shoulders rising and falling in unison, strangely beautiful in a way. Over by the forklift sat 8831, his eyes as blank as the piece of bread he was eating.
Two weeks from today was Todd’s thirtieth wedding anniversary, and even if he were to pawn the watch, the ring, and the necklace, he knew he wouldn’t even come close to having enough for Paris. That’s where Sue had wanted to go for as long as he could re member. They didn’t have the money to honeymoon there, but that was okay because back then, there had been plenty of time. They were young, both healthy and working, so they would save a little here and there and in a couple of years, they would be walking up to the Eiffel Tower at night arm in arm, find themselves underneath the arch and look up at the beacon that shines on this city of lights.
But then came two sons and three recessions and a second mortgage. A hysterectomy for her, a double bypass for him, and now here he was, nine years short of retirement, supervising a team of robots and a retarded man, thinking about folks who could sell things they couldn’t touch, like stocks and bonds and whatever else he couldn’t even fathom, people with money who would pay to experience another’s most cherished moments.
Silly. That would be Sue’s word for it if this were a story she’d overheard. For a trip, what a silly thing to do. But it was more than a trip. It was their life together. There was life and there was death, and it seemed to Todd that if he waited any longer, there wouldn’t be any difference between the two.
He opened the filing cabinet and rifled through the folders. Name: Lopez, Manny. Age: 46. Tax Status: Married. In all the years he’d been here, only a handful of human workers had come and gone. All of them were handicapped in some way; they came through the city welfare program, and 8831 was no exception.
Manny’s wife picked up on the second ring. Todd told her who he was, and after he assured her that her husband was not hurt, he was fine, he was a great worker, he asked her what he wanted to know. She listened without interrupting him; then there was a lengthy silence.
‘Why?’ she asked.
‘Does it matter?’
‘I can report you.’
‘I know.’ More silence.
‘He did it because he loved me. Loved,’ she said, hardening. ‘Not loves.’
‘I heard you.’
Then she hung up, and for the rest of the day, Todd replayed the conversation in his mind. Should he have lied to her, made up some story about a sick mother, a dying child? He wasn’t good at talking, especially on the phone. People thought he was unfriendly, hostile. A woman once told him his voice sounded like broken stones rattling in a cage.
The horn blared at five, time for the two humans to go home and the robots to be reconditioned and put in standby.
(Adapted from ‘Paris, at Night’ by Sung J. Woo)
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Leadership in college
Everyone says it's important to get involved in college. Joining organizations and clubs helps college students feel more connected to their schools, build résumés, learn important life skills that may not be gleaned in lecture halls, and potentially meet some of their best friends.
The minute I walked on campus to begin my freshman year, I knew I had to get involved in as many organizations as I could. In January, I began my position as a sisterhood director, which entailed planning events for my chapter, whether that is at our own chapter or out in the city community. I've hosted events such as essential-oil DIY parties, yoga classes, movie nights and senior send-off celebrations for our chapter members. I was very excited about the opportunity, and I knew that my previous leadership experiences would help me out. However, my perspective on what it means to be a leader among my peers has definitely changed after a semester of holding the position.
There are three main components that I have learned through leadership: communication, organization, and delegation. I've learned that no matter how many times or in how many different ways you communicate a message, it will not get agross to everyone, and that is OK.
People value transparency and sometimes need to be told exactly what you expect of them. Some people are so on top of schedules that they could tell you what's going on six months from now, but some people need constant reminders and do not keep track of their schedules. There is a gap in communication between these two types of people that can lead to frustration and disorganization on both ends.
This past semester I have worked to bridge that gap between types of communicators, and that is one of the most valuable tlings I have learned from my position.
It's important to appreciate the time it takes for every aspect of an event to plan and to take place; some tasks can take months to put together, and those should not involve procrastination. But some are OK to sort out the day of. Some of my best work was done with hours to spare, and if that's when you work best, why avoid it? Procrastination, when paired with an organized plan, can turn out to be successful.
One of the strongest qualities a good leader can have is the ability to delegate. It's a misconception that as a leader, you must do and be a part of every step of a project. Delegating tasks to members of a committee, in my case, was a lifesaver and what made my job so worthwhile. I got to work with so many different talents, and this way, they all feel as if they're contributing in a way that is specific to their talents.
What I've learned through mistakes and successes in my position has led me to be more knowledgeable, not only about planning events and about the members of my chapter but about communicating, organizing, modeling roles, and involving the community.
I feel so grateful to be in a position that has encouraged me to learn more about myself and the skills that I've had to acquire. I feel so fortunate to have had this position so far, and it has made me reflect on the kind of leader I hope to be in my future career. Having a leadership position in college is vital to be able to discover how you communicate with others and what skills you have and lack before you go off into the real world.
What did the author learn about communication while being a leader? 1) It is impossible to get everybody to understand the task.
2) Different ways of communication increase understanding.
3) It is easier to deal with people who follow the schedule.
4) Disorganized people often get upset about the schedule.
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14. In paragraph 3 ‘dubbed’ means
1) added.
2) labelled.
3) doubled.
4) showed.
The risk of catastrophic climate change is getting worse, according to a new study from scientists involved with the United Nations Intergovernmental Panel on Climate Change (IPCC). Threats — ranging from the destruction of coral reefs to more extreme weather events like hurricanes, droughts and floods — are becoming more likely at the temperature change already underway: as little as 1.8 degree Fahrenheit (1 degree Celsius) of warming in global average temperatures.
‘Most people thought that the risks were going to be for certain species and poor people. But all of a sudden the European heatwave of 2003 comes along and kills 50,000 people; [Hurricane] Katrina comes along and there’s a lot of data about the increased intensity of droughts and floods. Plus, the dramatic melting of Greenland that nobody can explain certainly has to increase your concern,’ says climatologist Stephen Schneider of Stanford University, who co-authored the research published this week in the Proceedings of the National Academy of Sciences as well as in several IPCC reports. ‘Everywhere we looked, there was evidence that what was believed to be likely has happened. Nature has been cooperating with climate change theory unfortunately.’
Schneider and his colleagues updated a graph, dubbed the ‘burning embers,’ that is designed to map the risks of damage from global warming. The initial version of the graph drawn in 2001 had the risks of climate change beginning to appear after 3.6 or 5.4 degrees F (2 to 3 degrees C) of warming, but the years since have shown that climate risks kick in with less warming.
According to the new graph, risks to ‘unique and threatened systems’ such as coral reefs and risks of extreme weather events become likely when temperatures rise by as little as 1.8 degrees F from 1990 levels, which is on course to occur by mid-century given the current concentrations of atmospheric greenhouse gases. In addition, risks of negative consequences such as increased droughts and the complete melting of ice caps in Greenland and Antarctica definitively outweigh any potential positives, such as longer growing seasons in countries such as Canada and Russia.
‘We’re definitely going to overshoot some of these temperatures where we see these very large vulnerabilities manifest,’ says economist Gary Yohe of Wesleyan University in Middletown, Conn., another co-author. ‘We’re going to have to learn how to adapt.’ Adaptation notwithstanding, Yohe and Schneider say that scientists must also figure out a way to reduce greenhouse gas emissions to reverse the heating trend to prevent further damage.
Several bills pending in Congress would set a so-called cap-and-trade policy under which an overall limit on pollution would be set — and companies with low output could sell their allowances to those that fail to cut emissions as long as the total stays within the total pollution cap. Any such federal policy would put a price on carbon dioxide pollution, which is currently free to vent into the atmosphere, Yohe note. He, however, favours a so-called carbon tax that would set a fixed price for such climate-changing pollution rather than the cap-and-trade proposals favoured by the Obama administration. ‘It’s a predictable price, not a thing that bounces around.’
But even with such policies in place—not only in the U.S. but across the globe—climate change is a foregone conclusion. Global average temperatures have already risen by at least 1.1 degrees Fahrenheit (0.6 degree C) and further warming of at least 0.7 degree F (0.4 degree C) is virtually certain, according to the IPCC. And a host of studies, including a recent one from the Massachusetts Institute of Technology, have shown that global warming is already worse than predicted even a few years ago. The question is: ‘Will it be catastrophic or not?’ ‘We’ve dawdled, and if we dawdle more, it will get even worse,’ Schneider says. ‘It’s time to move.’
Space could solve water problems
14) The author thinks that outer space …
1. is dangerous because of asteroids.
2. is a source of important supplies.
3. is not studied properly.
4. should be colonized.
Have you ever tasted saltwater? I guess you have and if so, you will agree with me that it’s not very refreshing. In fact, drinking more than a few cups worth can kill you.
According to the United States Geological Survey, whose mission is to collect and disseminate reliable, impartial, and timely information that is needed to understand the nation’s water resources, about ninety-seven percent of the water on our planet is saltwater; the rest is stored in lakes, rivers, glaciers and aquifers underground. Moreover, only about one-third of the world’s potential fresh water can be used for human needs. As pollution increases, the amount of usable water decreases.
Water is the most precious and taken-for-granted resource we have on Earth. It is also one of the most threatened resources. Increased population and possible climate change will put more and more strain on supplies of this vital resource as time goes on. What could we do in this situation? Though it may seem like science fiction, the solution could lie in outer space.
I’m not saying we’re going to be teleporting to a spring on the other side of the galaxy or colonizing another planet just to have longer showers – it’s much more mundane than that. What we could achieve realistically in this century is the successful use of the solar system’s rare metals and water, barring the invention of the matrix.
You may be surprised to learn that the metal in your keys, coins, cell phone, computer, car and everywhere else, originally came to this planet from space. When Earth formed, the heavy metals sank to the center and formed a solid core. The lighter elements formed the mantle and the crust we live on. Asteroids and comets that struck the Earth brought water and metals to the surface.
There are thousands of asteroids orbiting near Earth. Most asteroids are made of rock, but some are composed of metal, mostly nickel and iron. Probes could be sent out to these to identify useful ones. Then larger probes could push them towards the Earth where they can be handled in orbit.
In order to fuel ships and probes, we simply need to find a source of water, such as a comet or the surface of the moon. We collect the water and pass an electric current through it from a solar panel. The water separates into oxygen and hydrogen, which in liquid form is a powerful rocket fuel.
Is this really possible? We may soon find out. Private company SpaceX has already started delivering equipment to the International Space Station (ISS).The ISS is proof that countries once at each other’s throats, like America and Russia, can work together and pull off multi-billion dollar projects.
Recently, a company called Planetary Resources Inc. made the news forgetting big names like Google and Microsoft to invest in exploring asteroids for material gain. Although it will take many decades, it is wise to put the gears in motion now.
We’ve already landed probes on the surface of asteroids and taken samples from them. We can put something as large as the ISS, which weighs just short of 500 tons, according to National Aeronautics and Space Administration (NASA), in orbit.
We can make a half-million-mile round-trip to get rocks from the moon. We can do all of these things already. They just need to be applied and developed in a smart way.
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