"What kind of rubbish are you?" This question might normally cause anger, but in Shanghai it has aroused complaints over the past week. On July 1st the city introduced strict rubbish -sorting regulations as a model for the country. Residents must divide their waste into four separate categories and throw it into specific public bins. They must do so at scheduled times, when monitors are present to ask the nature of one' s rubbish, otherwise, they will face fines or worse.

Shanghai authorities are responding to an obvious environmental problem. It generates 9 million tonnes of garbage a year, more than London' s annual output and rises quickly. But like other cities in China, it lacks a recycling system. Individuals who fail to recycle could be fined up to 200 yuan (＄29). For repeat, the city can add black marks to their credit records, making it harder for them to obtain bank loans or even buy train tickets. 

Some object to this. Peng Feng of the Shanghai Academy of Social Sciences warns that the use of the credit system is overkill, raising a risk that officials will abuse their power. But others say a tough campaign is necessary. "Slowly people will get used to it," says Li Changjun of Fudan University.

Many residents support recycling but are frustrated by the details. Rubbish must be divided according to whether it is food, recyclable, dry or harmful, the distinctions among which can be confusing, though there are apps to help work it out. Some have complained about the rules surrounding food waste. They must put it straight in the requisite public bin, forcing them to tear open plastic bags and toss (撕开) it by hand. Most upsetting are the short windows for throwing rubbish, typically a couple of hours, morning and evening. Along with the monitors at the bins, this means that people go at around the same time and can keep an eye on what is being thrown out; no one wants to look bad. 

    When she was ten years old, Isadora Duncan dropped out of school to teach people dance. If that job was left to any other ten-year-old, it would have turned out frustrating, difficult, and a little discouraging.

    But Duncan was different. Not only was she already talented enough to earn money even at that age, but she also had a rare kind of confidence that helped her treat troubles as fuel —something to elevate the fire that is already burning inside of her.

    It's no surprise, then, that when she moved to New York to join a theatre company, she found herself restricted. The existing dancing style, their way of operating—all of this seemed to her the work of a misguided past. Duncan was very direct about what she wanted, confidently telling people she had a different vision of dance that she was going to spread in the world. This, naturally, led to ridicule and laughs early on, but as she built up her work, these instances became less frequent. Today, she is remembered as "The Mother of Dance," with much of the modern art owing its expressive style to her influence. Inspired by the ancient Greeks, she brought the style to life.

    In her autobiography (自传), one of the things Duncan frequently refers to as the basis of her expressive spirit is the fact that she had a childhood where she wasn't constantly watched. The expectations of her mother (who raised her) were open-ended. It was the freedom of this lifestyle that drove her to see what she could do.

    Growing up, before she left school, she was told one of two things: that she was either completely useless or that she was a genius. There was nothing in between. Even when she started working, people either bowed to her or they basically ignored her. But there wasn't one moment Duncan doubted her own genius.

    There is an old quotation "if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid." And it captures an important truth. At school, Isadora Duncan was a failure. In the dance hall, she gave form to brilliance.

After a decade of negotiations, nearly 200 countries have agreed to a new United Nations treaty（条约）to protect the world's oceans, the first of its kind in 40 years. The High Seas Treaty aims to protect 30% of the open oceans by 2030, setting a plan in motion to preserve this vast area.

Oceans cover about 71% of the Earth's surface and are home to countless species of animals and plants. They play a crucial role in maintaining a healthy planet. However, overfishing and pollution from ships and other sources have severely impinged on many marine （海洋的）species and ecosystems.

The last major UN sea treaty in 1982 described the "high seas"—the parts of the oceans that aren't controlled by any country—but it did not protect them. The high seas, which account for two-thirds of the ocean, currently have only 1. 2% of their massive area protected. A marine protected area（MPA）is an area in the sea with strict rules about fishing and other activities. While more and more countries have established MPAs in their waters, most are not connected, limiting their effectiveness for migratory（迁徙的）species.

Last December, over 110 countries committed to protecting 30% of their land and ocean areas by 2030. The High Seas Treaty now enables the extension of this goal to the entire ocean. It aims to make 30% of the high seas become protected areas by 2030 and requires that proposed activities on the high seas undergo assessment for their potential impact on the ocean environment.

Reaching the agreement was challenging due to differing views on ocean protection among countries, such as limits on fishing or pollution. Disagreements also arose over sharing resources between rich and poor nations, with the latter seeking an assurance that resources benefit everyone, not just those in wealthy countries.

The treaty is not yet final and must be officially accepted at a UN meeting. Then it must be approved and signed by enough countries before it takes effect.