3 . Three years ago, Juan Carlos Sesma had a realization. Global warming and climate change seemed to be a mounting problem, with scientific records indicating rising temperatures and sea levels across the world. At the same time forest fires, logging, and aggressive human expansion meant the supply of trees which helped to regulate and remove greenhouse gases from our atmosphere was dwindling .

He decided the best way to tackle a problem this large was to combine two of the most powerful forces emerging in technology: big data and robotics. Sesma founded a new company called CO2 Revolution, whose plan was to use drones(无人机) to better understand where new trees should be planted and to automate the process of planting so that much larger areas of forest could be repopulated. The company designed a special smart seed that helped to deliver just the right amount of protection and nutrition to the young saplings. The overall goal was to considerably lower the time and cost of large-scale re-forestation.

CO2 Revolution isn’t alone. In the UK, a startup called Biocarbon Engineering ran a trial earlier this year where it used drones to help replant Mangrove trees in Myanmar. It has also deployed(部署) its technology in Australia, South Africa, and Morocco. “In a lot of places, people will either have a map taken by aeroplane, or just use Google Earth satellite imagery.

They’ll draw things out freehand and manually plant, either by hand or tractor,” said CEO Susan Graham in a recent interview.

The challenge for all these startups is to find ways to create a profitable, or at least sustainable, business model. For Sesma and the team at CO2 Revolution, recent regulatory action has highlighted one potential pathway. “We offer a solution that allows clients to carry out massive plantings, increasing forest mass and thus compensating for their carbon footprint.” Amid growing calls for carbon sequestration, this kind of effort might prove not just noble, but financially sensible for large corporations.

4 . Students at the Calhoun School in New York City have much more than a roof over their heads. They have a rooftop garden, with lush grass, colorful flowers and fragrant herbs. “Green roofs” are sprouting up all over, from schools to city skyscrapers. And roofs aren’t the only things going green. Architects are finding all sorts of new ways to build buildings that are easier on the environment. These schools, homes, and offices are called “green buildings”.

Normally it takes a lot of energy to run appliances. Too often, that energy comes from burning fossil fuels. So green buildings are designed to do all these things with much less energy. An energy-smart building starts with thick walls. A layer of insulation (隔热材料) traps air to stop heat from passing through. That keeps heat inside in the winter, and keeps heat outside in the summer. This saves energy for heating and cooling.

Heat pumps are another power-saving way to stay comfortable. A ground heat pump moves heat through pipes that run through the ground next to the building. A few feet under the ground, the temperature stays around 10℃ all year round. Water flowing around the pipes helps heat the building in winter and cool it in summer.

Another way to build green is to use recycled materials. That saves the cost and pollution of manufacturing something new. In the Chicago Center for Green Technology, the ceiling tiles (瓷砖) are made of pressed newspaper. The bathroom floors are tiled with recycled glass, and the stall walls are recycled plastic. Builders have found many creative ways to re-use old materials.

As more people become concerned about climate change, more buildings are going green. Green buildings produce less of the gases that warm the planet. City planners like green buildings because they save money. And they are healthier for the people who work and live inside. But you don’t need to build a whole new building. Simple changes like shading windows and planting trees can make any home greener—and a better Earth home for us all.

6 . In April 2022, the revised law on wildlife protection has adjusted measures for the regulation of wildlife populations in detail. “Graded, categorized management of wild animals bred in captivity (人工饲养)” is what the adjusted law offers, . “Three-haves” species—species that are thought to have “special ecological, scientific, or social significance”—is a case in point.

Concerns have been raised by a few civil society organizations that this will weaken conservation efforts, promote the growth of the wildlife breeding industry, and make it easier for illegally hunted animals to be mislabeled as captive-bred. However, some scholars believe that by making conservation management more case-by-case and less universal, the adjusted law improves regulation efficiency.

The existing law on wildlife protection was created in 1988 and since then had seen three amendments and a revision. According to Yue Zhongming, a member of the Legislative Affairs Commission of the National People’s Congress (NPC) Standing Committee, the revised law has helped step up the protection of wild animals and their habitats and strengthen the rescue and breeding of endangered wildlife. Yue added that it has also played an active role in preserving biodiversity and pushing forward with ecological conservation in China.

Ran Jingcheng, head of the wildlife and forest plant management station in southwest China’s Guizhou Province, pointed out in his article that strengthening the management of wild animals is not as simple as banning artificial (人工的) breeding. In his view, artificial breeding of wild animals has significance in the protection of endangered species and the adjustment of rural industrial structure.

It is necessary to establish the principle of combining key protection and universal protection, and to include all types of wild animals with conservation value within the scope (范围) of legal protection.

8 . 为了保护环境、节约能源，越来越多的人选择低碳生活。作为中学生，我们能为环保做些什么呢？请你根据以下要点提示用英语写一份倡议书，呼吁你们班同学保护环境。

要点提示：

1.少使用塑料袋；

2.循环使用旧课本；

3.少乘电梯，节约用水、用电；

4.多植树；

5.最好步行或骑自行车上学。

注意： 1.词数80左右（格式、开头和结尾已给出，不计人总词数）；

2.可以适当增加细节，以使行文连贯。

My fellow students,

Our environment is becoming worse and worse. As students, what can we do to protect the environment?

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

In fact, even the simplest everyday activities can make a difference to the environment. I believe that by working together we can make the world a better place to live in.

10 . 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.