The world consumes hundreds of billions of single-use plastic bags each year. They are difficult to recycle, wasteful and damage the nature. Environmental activists want to ban plastic bags or—as many communities have done —charge a fee for them. But the plastic bag industry defends their use, saying people reuse plastic bags, and industry officials argue recycling is a matter of personal responsibility and should not be forced.

    City officials say New Yorkers use 5.2 billion plastic bags each year. They are offered free with nearly every supermarket, or convenience store purchase. Many people like them, even if they sometimes feel guilty about using them. But what happens to those bags after they've been used in a huge environmental problem. They are found on beaches. They are caught in trees. They are swallowed by marine life.

    Plastic bags are made of petroleum products and natural gas, and do not biodegrade (分解). And they are difficult to recycle. So New York City spends nearly $ 10 million dollars a year to send 100—thousand tons of plastic bags to landfills out of state.

    In Washington, D.C., a five percent charge on all single-use bags led to about a 60 percent reduction and in Los Angeles County in California , a 10 cent charge on single-use bags led to a 95 percent reduction. With a 10 cent charge on bags, customers are much more likely to stop and think about whether they need a bag or not. And that's really all that these laws are doing.

    Camping is a good way to spend time along with your kids and to show them how wonderful nature can be. Through camping, children can discover new things about nature, such as flowers, birds, and other small animals. Camping gives kids time to get away from all the electronics (电子) of today's culture. So it is necessary to plan exciting and enjoyable family camping trips with your children while they are young.

    When planning your family camping trip, consider the activities your kids like: games, hiking, swimming, boating, bicycling, etc. Select a camping place that has some of the activities the kids are interested in. Meal planning is an important part of your camping trip. Plan the meals together, and kids love to choose what they want to eat.

    When starting to pack for your trip, let the kids pack their own items (物品) . Each person should have his/her own sleeping bag with a luggage (行李) bag to put it in. Personal items should be packed with their sleeping bags. Encourage the kids to put their items in a certain place and always return it when they have finished using it.

    When you have arrived at your campsite, make all the camping activities a family activity, which will help children to realize how important team-work is. Everyone can have his/her own job sitting up the campsite. Meal time can be a fun time. So let the older ones help with the cooking on your outdoor camping stove while the younger ones get the picnic table ready.

    Perhaps no one knows the power of imagination better than Chinese writer Liu Cixin. Until four years ago, Liu worked full-time as a computer engineer at a power plant in Shanxi province. He only wrote science fiction in his spare time. But it was during this time that Liu's imagination took flight. He did what he might never have the chance to do in real life – wander in space, fight with aliens, and visit planets light-years away.

    But even with such a powerful imagination, Liu, 55, probably hadn't expected that he would become the first Asian to win the Hugo Award, science fiction's highest prize, in 2015. Perhaps neither did he think that former US president Barack Obama would read his novel The Three-Body Problem, nor that on Nov 9 in Washington DC, he would win the 2018 Arthur C. Clarke Award for Imagination in Service to Society. It's the first time a Chinese writer has ever won the award.

    In his acceptance speech, Liu said that he owed his imagination to Arthur C. Clarke (1917-2008), a famous UK sci-fi author. He said that reading Clarke's 1968 classic novel 2001: A Space Odyssey in the early 1980s had a great effect on him.

    “My mind opened up like never before. I felt like a narrow river finally seeing the sea,” Liu said. “That night, in my eyes, the starry sky was completely different from the past. For the first time in my life, I was awed (使……敬畏) by the mystery of the universe.”

    But no matter how far away Liu's imagination takes him, somehow his novels always stay rational.

    In The Three-Body Problem, for example, Liu tells a tale of aliens invading Earth. But unlike other alien stories, Liu talks more about relationships between civilizations(文明), rules of survival, and the meanings of life. And in The Wandering Earth, Liu looks ahead to the day when our solar system comes to an end and humans have to look for a new place to live. However, all his visions and solutions are based on “hard science”. Liu's works aren't simply daydreams.

    Recently, as the British doctor Robert Winston took a train from London to Manchester, he found himself becoming steadily angry. A woman had picked up her phone and begun a loud conversation, which would last an unbelievable hour. Furious, Winston began to tweet about the woman. He took her picture and sent it to his more than 40,000 followers.

    When the train arrived at its destination, Winston rushed out. He'd had enough of the woman's rudeness. But the press were now waiting for her on the platform. And when they showed her Winston's messages, she used just one word to describe Winston's actions: rude.

    Winston's tale is something of a microcosm(缩影) of our age of increasing rudeness, fueled by social media. What can we do to fix this?

    Studies have shown that rudeness spreads quickly, almost like the common cold. Just witnessing rudeness makes it far more likely that we, in turn, will be rude later on. The only way to avoid it is to deal with it face to face. We must say, "Just stop." For Winston, that would have meant approaching the woman, telling her that her conversation was frustrating other passengers and politely asking her to speak more quietly or make the call at another time.

    The rage and injustice we feel at the rude behavior of a stranger can drive us to do odd things. In my own research, surveying 2,000 adults, I discovered that the acts of revenge people had taken ranged from the ridiculous to the disturbing. Winston did shine a spotlight on the woman's behavior — but from afar, in a way that shamed her.

    We must instead combat rudeness head on. When we see it occur in a store, we must step up and say something. If it happens to a colleague, we must point it out. We must defend strangers in the same way we'd defend our best friends. But we can do it with grace, by handling it without a trace of aggression and without being rude ourselves. Because once rude people can see their actions through the eyes of others, they are far more likely to end that strain themselves. As this tide of rudeness rises, civilization needs civility.

Columbia Engineering's Summer High School Academic Program for Engineers (SHAPE) is a selective pre-college program for high school students and recent graduates. SHAPE is tailored for students with a gift for STEM: science, technology, engineering, and mathematics. Each 3-week session offers college-level, project-based courses in engineering taught by celebrated professors at the university. 

SHAPE gives students a more realistic picture of what it means to be an engineer and its professional development components help students develop the skills they need to get there.

Courses

SHAPE features creative problem-solving courses and exposes students to innovative engineering techniques and knowledge presented by professors. Please note that SHAPE does not provide college credit. 

Students gain access to the famous MakerSpace and state-of-the-art research laboratories after completing the safety training and will only do so under close guidance. 

SHAPE also provides students with workshops to explore career fields, professional development, and guidance on sharpening one's college application from admissions officers. Students in the program will be visiting companies and organizations that show the classroom content in practice. 

Application

Students are selected based on the following criteria: 

⒈Strong academic record 

⒉Personal statement to demonstrate excitement and interest in STEM through engagement in challenging courses, activities, projects, etc. 

⒊Enthusiastic letter of recommendation submitted by a math or science teacher 

⒋Creative responses to two required questions and one of the three optional questions 

We encourage all students to apply by the priority deadline of June 15, 2023, so there is no application fee. After the priority deadline, a $50 application fee is required. 

SHAPE is dedicated to supporting students and their families in need of financial assistance. We offer a limited number of need-based scholarships, which cover the full cost of SHAPE. To be considered for a need-based scholarship, families will need to provide a recent pay receipt and complete a Family Income and Expense Worksheet.

Email: shape@columbia.edu for more information.

Bright and early on the morning of our first full day in Antarctica, L' Austral's Captain Fabien's voice woke us up as it came through a loudspeaker. If we looked outside right now, he said, we'd see a beautiful sea of icebergs in the golden sunlight. My sister and I jumped out of bed, staring in amazement as we sailed past giant pieces of ice. In the distance, we spotted a group of humpback whales feeding on smaller fishes. Next door, my parents were also waking up to the sights of a new day in Antarctica. Over breakfast, my sister and I excitedly told them about the whales we saw from our room that morning.

You might not immediately think of "family vacation" when talking about a trip to Antarctica, but tour companies like Adventures by Disney are changing that. The company offers guided group trips to destinations across all seven continents in the world.

Our adventure started when we flew to Buenos Aires and explored the beautiful Argentine capital for a day. After leaving Buenos Aires, we flew to Ushuaia on an Adventures by Disney plane. Then, it was the journey toward the Drake Passage. After a speedy Drake Passage crossing, we reached Antarctica early, adding a half day to our scheduled four days on and around the continent.

To those unfamiliar with Adventures by Disney, the fact that you can experience Antarctica-the most distant, extreme continent-with Disney might be surprising. During the trip, there were thoughtful acts, from stamped postcards to send from an Antarctica post office to a champagne (香槟) party on our final stop of the journey; Adventures by Disney truly thought of everything for us. Antarctica is a life-changing destination packed with experiences that can't be copied. We experienced seasickness when travelling across the Drake Passage, hiked up ice hills alongside lovely animals, and had a taste of champagne. And honestly, it's going to be hard for the next family trip we may take to compete.