1 . Most people, if you quizzed them, probably wouldn’t know how much of all global trade is done by sea. It’s one of several reasons that the pollution and carbon emissions from shipping gain much less attention than those from road transport and other industries. It’s over the horizon, out of sight and out of mind.

Today, the international shipping industry is the main mode of transport for around 90 per cent of world trade. It’s powered almost entirely by fossil fuels. Studies show that alternative technologies and zero-emission fuels — including electrofuels such as hydrogen, ammonia and methanol — have the potential to significantly reduce the industry’s carbon footprint and thus require urgent implementation (实施). There’s just one catch: they don’t exist yet.

Even if the technology were available, the infrastructure (基础设施) for that technology or fuel is going to take time to develop. And an even bigger challenge is going to be whether that methanol or ammonia fuel is green, which touches on other industries such as renewable electricity. Do we even have enough renewable electricity in the world to be able to generate these fuels? It’s a complex supply chain that requires cooperation across the industry. It’s not something that one company can solve by itself.

According to Piotr Konopka, senior manager for energy and decarbonisation (碳减排) programs at DP World, there are some simple behavioral changes that can help cut down on fuel used in the meantime, from the regular maintenance and reduced idling of port equipment to the implementation of weather routing that helps ships avoid rougher, more fuel-intensive stretches of water. “Of course, efficiency is unlikely to ever reduce emissions by more than five or ten per cent, but it’s definitely a low-hanging fruit,” he says.

“This is the last moment for the IMO to act decisively to eliminate shipping emissions” says Delaine McCullough, shipping emissions policy manager at environmental NGO Ocean Conservancy. “We need countries to demand that the IMO set strong emission-reduction goals and take action at home if the IMO fails to do the right thing.”

2 . Plastic is everywhere, from the Arctic ice to vital organs in the human body. In fact, previous estimates suggest that the average person swallows a credit card-worth of microscopic plastic particles(颗粒) every week. But new research shows that this could actually be an understatement.

Microplastics are plastics smaller than 5 millimeters, found in industrial waste, beauty products, and formed during the degradation of larger plastic pieces. Over time, they break down into even smaller nanoplastics. These tiny particles can pass through our intestines and lungs into our bloodstreams, reaching vital organs like the heart and brain.

While the idea of eating plastic is unsettling in itself, the major concern here is that these plastic particles contain chemicals that can interrupt our body’s natural release of hormones, potentially increasing our risk of reproductive disorders and certain cancers. They can also carry toxins(毒素) on their surface like heavy metals.

In the past, researchers have shown bottled water can contain tens of thousands of identifiable plastic fragments in a single container. However, until recently, only the larger microplastics were detectable with available measuring tools, leaving the area of nanoplastics largely a mystery.

Using Raman microscopy (显微镜学), capable of detecting particles down to the size of a flu virus, the team measured an average of 240, 000 particles of plastic per liter of bottled water, 90 percent of which were nanoplastics, a revelation 10 to 100 times larger than previous estimates.

These plastics likely originate from the bottle material, filters used to “purify” the water, and the source water itself. “It is not totally unexpected to find so much of this stuff, ” the study’s lead author, Columbia graduate student Naixin Qian, said in a statement. His team hopes to expand their research into tap water and other water sources to better inform our exposure to these potentially dangerous particles. “The idea is that the smaller things get, the more of them I reveal, ” he added.

3 . Kenya has started its biggest rhino (犀牛) relocation project and began the work of tracking and moving 21 of the critically endangered animals, which can each weigh over a ton, to a new home.

A previous attempt at moving rhinos in the East African nation was a disaster in 2018 as all 11 of the animals died. Ten of them died from stress, dehydration and starvation intensified by salt poisoning as they struggled to adjust to saltier water in their new home, investigations found. The other rhino was attacked by a lion. The latest project experienced early troubles. A rhino targeted for moving was successfully hit with a tranquilizer (镇定剂) shot from a helicopter but ended up in a small river. Veterinarians (兽医) and rangers held the rhino’s head above water with a rope to save it while a tranquilizer reversal drug took effect, and the rhino was released.

The black rhinos are a mix of males and females and are being moved from three conservation parks to the private Loisaba Conservancy in central Kenya, the Kenya Wildlife Service said. Rhinos are generally solitary animals, which enjoy being alone, and are at their happiest in large areas. They are being moved because there are too many in the three parks and they need more space to walk and, hopefully, to give birth to babies.

Kenya has had relative success in reviving its black rhino population, which fell below 300 in the mid-1980s because of illegal hunting, raising fears that the animals might be wiped out in a country famous for its wildlife. Kenya now has nearly 1,000 black rhinos, according to the wildlife service. That’s the third biggest black rhino population in the world behind South Africa and Namibia.

Kenyan authorities say they have relocated more than 150 rhinos in the last decade and the country is aiming to grow its black rhino population to about 2,000, which they believe would be the ideal number considering the space available for them in national and private parks.

4 . The French couple, Katia and Maurice Krafft, shared an attraction to volcanoes, one that perhaps approached an addiction. There are many people interested in volcanoes, but very few who are willing to climb an erupting crater(火山口) and approach the flowing lava(岩浆). Katia and Maurice did a lot of work, shooting photographs and films of volcano eruptions, always being the first on the scene of an active volcano, and the ones who fearlessly came to just a few feet from lava flows. They were not only highly respected by volcanologists all around the world, but also envied.

The couple metinthe1960s when they were both students at the University of Strasbourg, and got married in 1970. Both of them were attracted to volcanoes since childhood. Upon graduating, Katia and Maurice pursued their careers as volcano observers with no financial support at all, just their own savings, which they spent on a trip to Stromboli to observe the eruption of the volcano.

They took an incredible and valuable set of photographs of the near-continuous eruption. People were curious about the photographs, while public officials working on threatening volcanoes found them useful. This interest in their work helped the French couple to establish a career in documenting eruptions. Now able to obtain financial support for their work, Katia and Maurice visited hundreds, if not thousands, of volcanoes around the globe. They traveled and recorded eruptions, always getting closer to the danger than anyone else.

In June 1991, along with 40 other people, the Kraffts set out to film the eruption at Mount Unzen in Japan. A sudden and unexpected flow took place and all the people in its path were killed. Later investigation revealed that Katia’s and Maurice’s bodies were closest to the volcano crater. They were 44 and 45 years old respectively.

In their 25-year-long career, the couple documented hundreds of volcanoes, and their work consists of thousands of sill photos, 300 hours off film materials, a number of books, and scientific articles published in Bulletin of Volcanology.

5 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The main structure of the Datengxia water resources management facility in Southwest China has been completed four months ahead     1     schedule, the Ministry of Water Resources said on Saturday.

The project,     2     is located in the Xijiang River, has eight power generation     3     (unit), each with an installed capacity of 200,000 kilowatts (千瓦). It can     4     (annual) generate more than 6 billion kilowatt hours of electricity.

In cooperation with other reservoirs (水库), the project can help Wuzhou, a city with     5     population of over 2.8 million in Guangxi, deal with once-in-a-hundred-year floods. Previously, the city was only able to hold floods that occur once every 50 years. The project also enables some cities in the Pearl River Delta     6     (resist) floods that happen once every two centuries.

The ministry said the Datengxia facility will also provide strong support for rural development, offering irrigation (灌溉) water to 80,000 hectares of farmland and     7     (address) drinking water shortage for almost 1.4 million people in Guangxi.

The project has already played     8     (significance) roles in the past three years when it was put into trial operation. For example, in June last year, it helped prevent     9     store about 700 million cubic meters of floodwater when the Xijiang River     10     (hit) by a flood. In the peak, it reduced water flow by 3,500 cubic meters per second.

10 . A forest after a wildfire

Throughout my career, I’ve had many chances to enter various wildfire areas. But I’ve ________ had the opportunity to see the immediate scene after a fire.

So when I ________ into a recently burned forest, my first reaction was the deathly ________ hung in the air. There were no birds, no breeze caught in the leaves of a tree, or animal noises. It felt as if life itself had totally ________ from this place. What was even worse, the burned-out forest meant that a large amount of ________ alongside the road was no longer ________ by the under-growth (灌木丛) . Oil cans, glass, plastic bags—you name it, and you can find it.

Knowing there was a story here that needed ________ , I raised my camera with a heavy heart, no matter how ________ . Photographing burned-out areas is ________ , since there is really only a bunch of burned-out wood. Through my lenses, I sought to connect viewers to the ________ of the disaster.

For a nature photographer passionate about environmental protection, it’s important to ________ the ugly as well as the beautiful. We need to put those two things together, so while ________ hope, we are aware of what has been taken from us, and how ________ that loss can be. Without that balance, we risk becoming used to a world shaped by destruction and not the one of ________ . Nature will regenerate, but now, we must consider what ________ we humans play in that process, too.