1 . In a groundbreaking achievement, a rhino has successfully undergone embryo (胚胎) transfer, marking the first successful use of a method that holds promise for saving the nearly extinct northern white rhino subspecies.

The experiment, conducted with the less endangered southern white rhino subspecies, involved creating an embryo in a lab using eggs and sperm (精子) collected from other rhinos. This embryo was then transferred into a southern white rhino alternative mother in Kenya. Despite the unfortunate death of the alternative mother due to an infection in November 2023, researchers praised the successful embryo transfer and pregnancy (怀孕) as a proof of concept. They are now ready to proceed to the next stage of the project: transferring northern white rhinoembryos.

Professor Thomas Hildebrandt expressed optimism about the findings, highlighting the significance of the successful embryo transfer in demonstrating that frozen and defrosted embryos produced in a lab can survive. This development offers hope for the revival of the northern white rhino population.

However, challenges facing rhino conservation remain significant. While the southern white rhino subspecies and the black rhino species have shown signs of recovery from population declines due to illegal hunting for their horns (牛角), the northern white rhino subspecies is on the edge of extinction. With only two known members left in the world, Najin and her daughter Fatu, both unable to reproduce naturally, and the recent death of the last male white rhino, Sudan, in 2018, urgent action is needed to prevent the extinction of this subspecies. Dr. Jo Shaw, CEO of Save the Rhino International, emphasized the importance of addressing the primary threats facing rhinos worldwide: illegal hunting for their horns and habitat loss due to development. She stressed the need to provide rhinos with the space and security they need to succeed in their natural environment.

While the successful embryo transfer representsa significant advancement in rhino conservation efforts, organized action is required to address the main challenges facing rhino populations worldwide.

3 . Not much trash and almost no plastic actually gets recycled. About a third of U.S. garbage gets recycled, according to the Environmental Protection Agency’s most recent estimate. The rest goes to landfills, which release greenhouse gases into the atmosphere and pollute their surroundings.

To make recycling easier, many U.S. cities don’t ask Americans to separate paper, glass, metal and plastic. ‘They just ask people to put anything recyclable into one bin and let waste plants do the sorting. But waste plants don’t catch everything. AI is now an essential tool for the world’s waste management leaders. Greyparrot, a tech company has already installed more than l00 AI trash spotters in about 50 sorting facilities.

Greyparrot’s device is, basically, a set of visual and infrared (红外线的) cameras hooked up to a computer, which monitors trash as it passes by on a conveyor belt and labels it under 70 categories, from loose bottle caps to books to aluminum cans. Waste plants could connect these AI systems to sorting robots to help them separate trash from recyclables more accurately. They could also use the AI as a quality control system to measure how well they’re sorting trash from recyclables. That could help plant managers adjust their production lines to cover more recyclables, or cheek that a bundle of recyclables is free of pollutants, which would allow them to sell at a higher price.

In the next few years, some recycling companies plan to retrofit (改良) thousands of material- recovery facilities with Al trash - spotting tools. Of these companies, Bollegraaf has built thousands of these facilities, including 340 in North America, accounting for a majority of the recovery plants in the world.

The trash-spotting computers could one day help regulators punish companies that produce tsunamis of non - recyclable packaging because the AI systems are so accurate that they can identify the brands on individual items. Putting the AI tools in thousands of waste plants can raise recycling percentage. If the needle can be moved by even 5 to 10 percent, that would be a phenomenal outcome for greenhouse gas emissions and environmental impact.

6 . Xu Hai’ou has spent most of her life promoting environmental protection work in Beihai, a coastal city in the Guangxi Zhuang autonomous region, by cleaning beaches, protecting mi-grant birds and recycling kitchen waste.

Though her family originally comes from the eastern province of Shandong, the 60-year-old was raised in Guangxi and moved to Beihai for work at age 23, directly after graduating from college. Before she retired, she worked as a reporter for the Guangxi Daily Media Group, a news outlet in the region. In her free time, she became involved in voluntary work.

“In initially, in the 1990s, I helped impoverished children in Guangxi’s rural areas obtain financial aid from donors in Hong Kong, and set up my own NGO in 2004. At the time, it was Beihai’s only nonprofit social organization involved in volunteer work,” she said, “It’s very enjoyable to do this charity work and I have made many friends through it.”

She said her NGO focuses on environmental protection work and organizes a range of voluntary activities, including cleaning up beaches, and protecting mangrove forests and migratory birds.

In 2008, the organization joined a marine life protection event supported by the central government, the UN Environment Programme and the Global Environmental Facility.

Xu and her colleagues at the association arranged a number of voluntary events such as raising awareness of marine biodiversity among local residents and students, and beach-cleaning activities to help promote understanding of the need to protect marine animals and plants.

“Undertaking voluntary activities or charitable work has become my mission, and I want to contribute my own efforts to the nation’s environmental protection work, even if they only produce a small improvement. However, protecting the environment is very hard work. which can’t be done by a single person. I sometimes feel like my ability falls short of my wishes.”

According to Xu, her NGO is currently promoting the classification of waste in Beihai and recycling kitchen waste into compost. “We have mature technologies, but still face difficulties in promoting the program because many residents lack awareness of environmental protection. We hope the government can figure out better ways of managing the garbage after we classify it to make full use of this ‘waste’.”

Wang Xin, a marketing manager based in Shanghai, paid special attention to the carbon consumption figures shown on a flight booking platform. “When booking a flight, I will first check the flights     1     meet my time requirements. If multiple flights within the time range are approximately the same price, I will     2     (definite) choose the one with     3     (little) carbon consumption.” Wang says.

Business travelers like Wang have shown a     4     (prefer) for trips that leave a smaller carbon footprint, according to a recent report. More than 60 percent of its business customers have options     5     low-carbon travel products. “The low-carbon travel trend began in 2022 when we launched flight carbon emission data, which has been recognized by     6     increasing number of business clients,” says Zha Jun, an official with the travel management division.

Afterwards, the carbon emission data of hotels, trains and cars     7     (add) up to now. Business travelers have been encouraged to use new energy vehicles and save electricity and water at hotels, as well as food on flights. Those     8     (choose) low-carbon travel products can also get rewards, such as air miles and credits that can be used     9     (reduce) future travel costs.

According to the US-headquartered Global Business Travel Association, 25 percent of companies worldwide consider carbon footprint and sustainability important in business travel. Among     10     (they), 35 percent have carried out sustainable policies.

9 . A GIF of the Wicked Witch (巫婆) of the West from “The Wizard of Oz” saying “I’ll get you, my pretty, and your little dog too!” played behind Economics Professor Michael Rizzo as students gathered in Wegmans Hall on Oct. 30 to hear him argue against the opinion that the Earth is going through a climate disaster.

“I’m curious to see how many people will misunderstand the point of my talk, which is about addressing the issue of disaster and not at all the issue of whether climate change is happening, or even the mechanics of it,” he said in an interview with the Cambus Times.

The talk included Rizzo stating his biggest fear—that he doesn’t know what he doesn’t know about climate change. The talk, he said, was assembled from everything he’s read, and, to him, things don’t look so bad, but he knows he hasn’t read everything.

First-year Aidan Lieberman, who attended the talk after hearing about it in Rizzo’s Prin- ciples of Economics class, thought the professor tried to fit too much into his time, but he agreed with the points that he could follow, saying “they seemed to make sense.”

“I was only able to follow a few of the points he was making, ” Lieberman said. “My biggest takeaway is that humans will be able to manage the effects of climate change as they become more severe. ”

Rizzo said he wanted students to leave the talk understanding that the rhetoric around climate “disaster” often comes more from how information is reported rather than the science it- self. Addressing issues of climate change, he stressed, requires a careful understanding that takes lots of research to achieve-research that he found students weren’t doing before coming to him with disagreements.

10 . We have all heard that reducing meat and dairy (乳制品的) consumption is an important behavioral change that can help with our planet’s climate. However, what is a successful strategy to get people to consume more plant-based food?

Brigham and Women’s Faulkner Hospital has an answer. They pioneered a vegetarian/ vegan option to reduce climate change. Faulkner is among the 60 hospitals, universities, major companies, and cities that have signed an international pledge (保证) to reduce food-related greenhouse gas emissions (排放) by 25%by 2030.

The hospital focused on the benefits of the ingredients in the dish rather than mention “vegan” or “vegetarian” in the name of any dishes on the hospital cafeteria menu. Another strategy that has been experimented with is the order of foods. For example, putting vegan and vegetarian foods before the ones containing meat urges the patients to take plant-based foods first.

Through the research, the hospital has found that vegan and vegetarian labeled foods tend to categorize foods and attract only a certain number of the hospital’s patients. Much like other labels, vegan and vegetarian foods have been left out of the diets of people who don’t have any dietary restrictions.

Although food is only a small percentage of hospital carbon emissions, reducing meat in cafeteria food will reduce the carbon emissions significantly. Additionally, vegan and vegetarian diets will help diversify people’s diets, increasing their intake of healthful fiber, vitamins, and other micro-nutrients. Adding fish to their menu in the future is another good option since it can be sustainably fished.

Since starting the pledge, the hospital has seen a 2.2%decrease in total emissions per calorie. This result of this strategy matches a similar study from MIT and could change what we think of plant-based foods.