1 . Birders get nervous when they see landscapes covered in wind turbines (涡轮机). When the wind gets going, their blades (叶片) can turn around at well over 200km per hour. It is easy to imagine careless birds getting cut into pieces and wind turbines do indeed kill at least some birds. But a new analysis of American data suggests the numbers are negligible, and have little impact on bird populations.
Erik Katovich, an economist at the University of Geneva, made use of the Christmas BirdCount, a citizen-science project run by the National Audubon Society. Volunteers count birds they spot over Christmas, and the society gathers the numbers. He assumed, reasonably, that if wind turbines harmed bird populations, the numbers seen in the Christmas Bird Count would drop in places where new turbines had been built. Combining bird population and species maps with the locations and construction dates of all wind turbines, he found building turbines had no noticeable effect on bird populations.
Instead of limiting his analysis to wind power alone, he also examined oil-and-gas extraction (开采), which has boomed in America over the past couple of decades. Comparing bird populations to the locations of new gas wells revealed an average 15% drop in bird numbers when new wells were drilled, probably due to a combination of noise, air pollution and the disturbance of rivers and ponds that many birds rely upon. When drilling happened in migration centers, feeding grounds or breeding locations, bird numbers instead dropped by 25%.
Wind power, in other words, not only produces far less planet-heating carbon dioxide and methane than do fossil fuels. It appears to be significantly less damaging to wildlife, too. Yet that is not the impression you would get from reading the news. Dr Katovich found 173 stories in major American news media reporting the supposed negative effects that wind turbines had on birds in 2020, compared with only 46 stories discussing the effects of oil-and-gas wells.
1. What does the underlined word“negligible”in paragraph 1 mean?A.Insignificant. | B.Inaccurate. | C.Inconsistent. | D.Indefinite. |
A.Previous studies. | B.Relevant data. |
C.Reasonable prediction. | D.Experiment results. |
A.Oil-and-gas extraction has expanded in America. |
B.Birds are heavily dependent on rivers and ponds. |
C.Many factors lead to the decline of bird populations. |
D.Well drilling poses a serious threat to birds' survival. |
A.Wind turbines could share the sky with wildlife. |
B.More evidence is needed to confirm the finding. |
C.Wind power will be substituted for fossil fuels. |
D.Wind turbines deserve wider media coverage. |
2 . People have always believed that nature is good for health and happiness. According to scientific studies, being in nature makes people less stressed. In a recent experiment in Japan, one group of people were asked to walk through a forest while another group had to walk through a busy city.
Gregory Bratman from Stanford University in the United States found in experiments that a walk in nature could have important cognitive (认知) benefits, improving a person’s memory and creativity.
Why does being in nature bring so many benefits for us?
Scientists also think that being in nature helps our brain recover from a lot of activities that we usually do during the day such as working on math problems or using our cell phone.
A.The walks were equally long and hard |
B.Regular workouts are surprisingly helpful |
C.One idea is that human beings come from nature |
D.Nature’s benefits have been scientifically confirmed |
E.In these activities, we use a lot of directed attention |
F.Being in nature increases people’s mental health as well |
G.We can see this in schools where outdoor learning has been introduced |
3 . The streets and roofs of cities all absorb heat, making some urban areas hotter than rural ones. These “urban heat islands” can also develop underground as city heat spreads downward, and subway tracks and other subsurface infrastructure(基础设施) also constantly radiate warmth into the surrounding earth.
A new study of downtown Chicago shows underground hotspots may threaten the very same structures that give off the heat in the first place. “Without anyone realizing it, the city of Chicago’s downtown was deforming,” says study author Rotta Loria, an environmental engineer.
Humans aren’t the only potentially affected. “For a lot of things in the subsurface, it’s kind of ‘out of sight, out of mind’,” says Grant Ferguson, a geologist. But the underground world is full of creatures that have adapted to subsurface existence such as insects and snails. As the temperature rises because of climate change and underground urban development, scientists are keeping eyes on the potential implications for underground ecosystems.
But the question of how underground hotspots could affect infrastructure has gone largely unstudied. Because materials expand and contract with temperature change, Rotta suspected that heat coming from underground could be contributing to wear and tear on various structures. To understand how underground temperature difference has affected the ground’s physical properties, he used a computer model to simulate(模拟) the underground environment from the 1950s to now—and then to 2050. He found that by the middle of this century, some areas may lift upward by as much as 0.50 inch or settle by as much as 0.32 inch, depending on the soil makeup of the area involved. Though these may sound like small displacements, Rotta says they could cause cracks in the foundations of some buildings, causing buildings to fall.
Kathrin Menberg, a geoscientist in Germany, says these displacement predictions are far beyond her guesses and could be linked to the soft, clay-heavy soils. “Clay material is particularly sensitive,” she says, “It would be a big issue in all cities worldwide that are built on such material.”
Like climate change above the surface, underground changes occur gradually. “These effects took decades to develop,” Ferguson says, adding that increased underground temperatures would likewise take a long time to dissipate on their own. “We could basically turn everything off, and it’s going to remain there, the temperature signal, for quite a while.”
But Ferguson says this wasted heat energy could also be reused, presenting an opportunity to both cool the subsurface and save on energy costs. Still, this assumption could fail as aboveground climate change continues to boost underground warming. However slowly, this heat will gather beneath our feet. “It’s like climate change,” Rotta Loria says. “Maybe we don’t see it always, but it’s happening.”
1. The author quotes Rotta Loria in Paragraph 2 mainly to _______.A.make a prediction | B.highlight a finding |
C.draw a conclusion | D.raise an assumption |
A.“Urban heat islands” extend underground to spare ecosystems. |
B.Surface climate change contributes to the reuse of underground heat. |
C.Underground temperatures mirror the ground’s physical characteristics. |
D.Buildings may collapse as a potential consequence of underground heat. |
A.Show. | B.Stay. | C.Develop. | D.Disappear. |
A.Underground climate change is a silent danger. |
B.Humans fail to notice the dramatic climate change. |
C.Cooling the subsurface helps control urban heat rises. |
D.Researching underground heat helps save on energy costs. |
4 . How can a large city find water for 10 million people if it is in the desert? Fog-catching nets on hills around the city of Lima, the capital of Peru, could solve the city’s water shortages for good. A twenty-meter high net tower will soon be displayed in the city as a solution to the problem.
Peru’s capital city has just one inch of rain a year. The city sees high annual temperatures and water consumption rates. Located in a desert, the city’s temperatures are higher than world averages. However, a unique feature of Lima’s weather offers a way of meeting some of this demand. Located on the coast, Lima’s surrounding hills are constantly bathed in waves of fog coming off the Pacific Ocean, and the moisture (湿气) taken in by plants ensures they stay green year-round.
Inspired by fog nets placed by rural communities across the continent, Alberto Fernandez, a Chilean architect currently studying for a Ph.D. from University College London, has designed a series of towers and fog-catching nets. They can collect as much as 1,000 liters of water per day, amounting to 3.6 million liters per year, if enough are put into use. Their towering structure allows them to get into the clouds, collecting more vital water vapor (蒸气), and their unique shape means that no matter the direction of the wind, the moisture-rich fog will strike some part of the structure directly.
The water will largely be used for agriculture — as the water would require filtering (过滤) before consumption — helping free up resources for city residents. Cheaper than filtering water from the Rimac River, these towers and nets, which Fernandez says could be built up to 200 meters high, are part of a series of designs for the Lima 2035 project. It aims to change current desertification and create a new place for sustainable and human-centered food systems that promote healthy diets and improve incomes in the driest city on Earth.
1. What makes plants in Lima stay green year-round?A.The heavy rainfall. | B.The high temperature. |
C.The net tower. | D.The unique location. |
A.The direction of the wind. | B.The moisture-rich fog. |
C.The height of the tower. | D.The fog-catching net. |
A.Supply drinking water. | B.Turn desert into rich soil. |
C.Increase food production. | D.Develop healthy lifestyles. |
A.Fog-catching towers help solve water shortage |
B.The driest city on Earth faces a serious problem |
C.Fernandez designed the first fog-catching net |
D.Water plays a role in a sustainable food system |
5 . Issues such as global warming and sustainability have become passionate concerns for many of the concert industry’s fans and increasingly for the musicians. Coldplay, a pop band whose members scored their first big hit in 2000 with a song called Yellow, announced in November that it wouldn’t go on tour to promote its latest album, Everyday Life, until it could find a way to make concerts more sustainable and greener to the environment.
It’s not always easy to walk the talk. A growing number of artists, including Peggy Gou, have environmental demands built into their contracts when they tour, such as bans on plastic tableware. But there’s almost no way of avoiding carbon emissions produced by a tour, which involves moving hundreds of people and tons of equipment across large distances.
Lisa Pomerantz, who books travel for acts says that real change will require action by venue owners, concert promoters, and the fans. Major acts like Coldplay can afford to stop touring while figuring out how to lessen their environmental impact. But lesser-known artists can’t stay off the road, since streaming earnings haven’t been able to compensate (弥补) for the collapse in CD and downloaded music sales. Even when concerts are aggressive about being more sustainable, the impact of audience travel can easily swamp (淹没) their efforts. For bigger acts, this can represent as much as 80% of the carbon footprint, according to a 2015 study. Another analysis showed that roughly a third of the tour’s carbon footprint came from a venue’s power consumption.
Still, even the most green-conscious bands must balance their desire to be more sustainable against the financial necessity of touring. “I absolutely think you can go on tour and have a concern about the environment. It’s a matter of just keeping our carbon footprint as low as possible,” says Flavian Graber, lead singer of We Invented Paris.
1. Why did Coldplay stop its promotion tour?A.Because it had already released a hit. | B.Because it wanted a more environmentally friendly concert. |
C.Because its latest album needed further improvement. | D.Because they could afford the money. |
A.Make it. | B.Talk it. | C.See it. | D.Appreciate it. |
A.Stopping bands’ promotion tours. |
B.Downloading music on the Internet. |
C.Cutting down venues’ water and electricity consumption. |
D.Combining efforts of bands, audiences and venue owners. |
A.Achievable. | B.Fruitless. | C.Challenging. | D.Controversial. |
6 . Last summer on the Hawaiian Island of Kauai, Tina Taniguchi worked close to the ground. Her coconut leaf hat covered most of her thick brown hair. Wet soil had gotten on her clothes and her smiling face.
Taniguchi smiles a lot while working on the Hanapepe salt land on the west side of Kauai. It is a piece of land about half a hectare in size with pools of salty water. The salt becomes crystals (晶体)as the water dries.
“The work is tiring, but for me it’s also play,” Taniguchi said with a laugh. Taniguchi’s family is one of 22 families who make salt, following a cultural and spiritual tradition. Hanapepe is one of the last remaining salt lands in Hawaii. Its salt can be traded or given away but must never be sold. Hawaiians use it in cooking, healing, and as protection.
Over the past 10 years, there have been several threats to this field. They encompass development, pollution from a neighboring airfield, damage to the sand from vehicle traffic and waste left by visitors to the nearby beach. In addition, rising sea levels and weather might stop the practice.
The process of turning sea water into salt can be slow. The season begins once the rain stops and water starts to disappear from the salt beds. Ocean water travels underground and enters the wells. Each family has their own well. As water enters the well, so do tiny, red brine shrimp. These small ocean animals give Hanapepe salt its unusual, sweet taste.
The families first clean the salt beds and line them with black clay (陶土). Then they move water from the wells into the beds. There, salt crystals form. The top level, or layer, is the whitest. It is used for table salt. The middle layer is pinkish and is used in cooking, while the bottom layer, which is a deep red color, is used in blessings.
1. What do we know about Taniguchi?A.She gives salt to others as a gift. | B.She works hard but with pleasure. |
C.She has found a new way to make salt. | D.She fears old traditions will disappear. |
A.Trade goods with it. | B.Use it as a treatment. |
C.Make money from it. | D.Cook vegetables with it. |
A.Prevent. | B.Include. | C.Improve. | D.Discover. |
A.The special taste of the salt. | B.A thicker middle layer of salt. |
C.More water in the wells. | D.A quicker process of making salt. |
7 . Campaigners opposing the building of new wind farms often point to the possibility that the blades of wind turbines (涡轮机) can cut careless birds to bits. No one doubts that wind turbines kill some birds. But a new analysis of American data, published in Environmental Science & Technology, suggests the numbers have little impact on bird populations.
Wind power has expanded dramatically in America over the past 20 years. Many studies have analysed the effects in specific locations or on specific bird species. But few have looked at the effects on wildlife at the population level. Dr. Katovich, an economist at the University of Geneva, used the Christmas Bird Count, a citizen-science project. Volunteers count birds they spot over Christmas, and the society edits the numbers. Its records stretch back over a century.
Dr. Katovich assumed, reasonably, that if wind turbines harmed bird populations, then the numbers seen in the Christmas Bird Count would drop in places where new turbines had been built. He combined bird population and species maps with the locations and construction dates of all wind turbines in America, with the exceptions of Alaska and Hawaii, between 2000 and 2020. He found that building turbines had no obvious effect on bird populations. That reassuring finding held even when he looked specifically at large birds that many people believe are particularly easy to be struck.
Dr. Katovich didn’t limit his analysis to wind power alone. He also examined oil-and-gas extraction (提取). Like wind power, this has boomed in America over the past decades. Comparing bird populations to the locations of new gas wells revealed an average 15% drop in bird numbers when new wells were drilled, probably due to a combination of noise, air pollution and the disturbance of rivers and ponds that many birds rely upon. When drilling happened in places designated by experts as “important bird areas”, bird numbers instead dropped by 25%. Such places are typically migration hubs, feeding grounds or breeding locations.
Wind power, in other words, not only produces far less planet-heating gas than fossil fuels. It appears to be significantly less damaging to wildlife, too. Wind turbines might look dramatic, but their effect on birds isn’t.
1. What does a new analysis find about wind farms?A.They take the lives of careless birds. | B.They improve birds’ living conditions. |
C.They do little harm to bird populations. | D.Their harmful effects on birds vary a lot. |
A.By counting bird numbers in different locations. |
B.By relating bird numbers to turbines’ distribution. |
C.By researching perfect places to build turbines. |
D.By studying the decline of birds near turbines. |
A.The wide spread of wind turbines. | B.The over-development of farming. |
C.The lack of environmental concern. | D.The drilling of wells for oil and gas. |
A.Wind Turbines and Birds Can Co-exist | B.Oil Drilling Shares the Sky With Birds |
C.Several Factors Lead to Bird Decline | D.Campaigners Oppose Bird Disturbance |
8 . When this year’s all-woman team arrived on Antarctica’s Goudier Island to run the world’s most remote post office, it was shovels they needed rather than stamps.
They’d traveled some 8,000 miles from the UK, by plane and boat, and Britain’s Royal Navy had helped them dig out their new home at the Port Lockroy scientific base, which was buried up to four meters deep under several tonnes of December snow.
It wasn’t just the frozen wastes that first struck postmaster Clare Ballantyne, who at 23 years old was the baby of the four-woman group. It was that “there’s penguins everywhere.”
More than a thousand Gentoo penguins live on this tiny island on the western side of the Antarctic peninsula (半岛), around the size of a soccer field. Since 1944, when the UK’s first permanent Antarctic base was established here, it’s also become a shelter for explorers, scientists and — in recent years — tourists.
Each year, a team is selected to run and maintain the site from November to March, or summertime in the southern hemisphere. Around 4,000 people applied for this job, but just four made the cut: Ballantyne, base leader Lucy Bruzzone, wildlife monitor Mairi Hilton and shop manager Natalie Corbett.
The job also involves counting penguins: The scientific data they gather on the Gentoos’ breeding patterns is part of a decades-long study of the colony.
When it comes to choosing candidates, “there is no recipe we can follow,” says Ballantyne. “It’s about your ability to work together as a team. Cheeriness goes a long way, being able to see the light in life and resolve problems quickly.”
Ballantyne notes that there has been “a bit of a decline in recent years in the breeding success” of the Gentoo penguins, but says “the causal connect ion is the tricky bit.” While climate change is probably “the biggest driver,” they also need to carefully examine if there’s a “human element” as well. In her opinion, Antarctica tourism has boomed significantly in the past couple of decades, but there aren’t legally enforced limits on tourism, which hopes to be a regulated industry.
1. What is the task of the all-woman team?A.Making out all the living habits of penguins. | B.Serving as postmasters and environmentalists. |
C.Designing stamps linked to the Antarctic peninsula. | D.Managing a post office including counting penguins. |
A.It’s situated on the eastern side of the Antarctic peninsula. |
B.Some scientists use it as a soccer field in their spare time. |
C.It’s fit for man to study the Antarctic and live temporarily. |
D.The number of the penguins on it has risen sharply. |
A.Being optimistic, competent and cooperative. | B.Being sensitive, courageous and determined. |
C.Being hardworking, modest and empathetic. | D.Being independent, elegant and generous. |
A.Climate change leads to the decline of penguins. | B.Polar tourism desires for improved management. |
C.Humans and penguins live in peace in the Antarctic. | D.Antarctica tourism has influenced climate change. |
Are we greening our cities, or just greenwashing them?
Architecture and urban design is chasing a green fever dream. Everywhere you look, there are plans for “sustainable” buildings, futuristic eco-cities and aquaponic farms on the roof, each promising to add a green touch to the modern city.
All of these are surely good ideas at some level. They are trying to repair some of the damage our lifestyle has done to the planet. But, despite the rhetoric of reuniting the city with nature, today’s green urban dream is too often about bringing a technologically controlled version of nature into the city and declaring the problem solved, rather than looking at the deeper causes of our environmental and urban problems.
One of the most striking examples is Apple’s “spaceship” campus now under construction in Silicon Valley. Though it seems to be sustainable and energy efficient—80 percent of its 175-acre site is preserved for landscaping, it is by any measure a huge, expensive and massively resource-intensive project. As a suburban white-collar workplace, it must include vast garages for 13,000 Apple employees. Thus, it will leave no smaller environmental footprint than a traditional office park.
Designing a perfect green building or eco-city isn’t enough to save the world. Although our buildings, like our cars, have been inefficient environmentally, architecture isn’t directly responsible for humanity’s disastrous environmental impacts. An economic system based on the destruction of nature is the real problem. No green building can help us repair the ecological damage we have caused, nor can any number of aquaponic farms bring us back to the real nature.
Instead of adding “nature” to the urban lifestyle, architects may work to design better relationships between our cities and nature, and to promote just relationships between the people in them.
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China drives world renewables capacity addition in 2023
China was the major driving force behind the world’s rapid
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