【推荐3】Many people quote the phrase from Jane Jacobs that “there must be eyes on the street” to emphasize the relationship between urban safety and design. Jacobs’ views on urban safety were, in truth, far more complex than this phrase suggests. Her book The Death and Life of Great American Cities has become the basis of a worldwide movement to foster safer cities.

Jacobs made an important contribution to our understanding of cities by linking the fear of crime and urban design. In a successful city district a person must feel personally safe on the street among all these strangers. It doesn’t take many incidents of violence on a city street to make people fear the street. And as they fear it, they use it less, which makes the street still more unsafe.

Jacobs widened her attention to urban safety in general, including parks and public housing projects. While most planners focus on the green benefits of parks, she argued against underused or dangerous parks. She observed that parks are successful when they encourage a range of activities and users.

She emphasized design and management policies to encourage interaction at public housing sites. She suggested combining public housing communities with existing street patterns and holding street activities by including businesses in the buildings. She opposed fencing and security guards, creating a sense of territory and isolating public housing residents from the wider community.

Jacobs wrote about her experience of daily life in the city and urged planners to pay attention to how ordinary people actually use urban space. From her experience as a wife, mother, and resident in New York, she arrived at a more human vision of the city than the experts of the day did. Her concern about urban safety was visionary (有远见的), and her manner of looking at the city still offers a critical viewpoint for evaluating crime prevention and community safety strategies today.

【推荐1】Four things that you can’t miss in Macao

Go Bungee Jumping at the Macao Tower

The Macao Tower, 338 meters tall, is the world’s 10th highest tower, with kinds of activities, such as eating and entertainment. One of the activities is the bungee jump. The Macao Tower Bungee Jump is 233 meters high, making it a Guinness World Record as the highest commercial bungee jump in the world. Raise your arms and off you go! If you are not daring enough to jump that height, you can try the sky walk on the 57th floor—it’s still amazing. Take this chance and tick off this item on your list.

Enjoy a traditional Portuguese dinner

Macao was once colonized (殖民) by Portugal before 1999. As a result, Portuguese culture has deeply affected Macao.

Many Portuguese settled and opened Portuguese restaurants here, but it is more adaptable to Chinese people.

Visit a museum

Macao, as a little city with only an area of 30.5 square kilometers, has 23 eye-catching museums. Due to its special history, both eastern and western historical relics can be found. Many of them are preserved for cultural relics, tourist spots or museums, such as the Grand Prix Museum, Maritime Museum and Wine Museum.

Go into an entertainment place

Well known as the “Las Vegas of the Orient”, Macao has 33 entertainment places. You can find different themed entertainment places with their hotels and attractions around every corner of Macao, especially on Taipa Island. Among all, The Venetian is the most popular. With a huge shopping mall and Vegas-style design, it is a must-go place for both tourists and locals to shop and enjoy free time. So when you come to Macao, just walk around and you will still be amazed.

【推荐2】For thousands of years, humans have built cities. Some of our oldest cities have managed to maintain pieces of their original characteristics while others have disappeared completely.

One of these lost cities belonged to the Anasazi people who lived in Chaco Canyon in New Mexico. They built houses along the river that ran through the valley. For nearly 300 years, the Chaco Canyon was the population center of many desert cities. Now nothing is left of this busy city but ruins. Scientists think that drought may have made the Anasazi’s food hard to get or that some kind of disease killed off many of the people. However, no one knows for sure what happened to the people of the Chaco Canyon. Another lost city sits high atop the Andes Mountains in Peru: the city of Machu Picchu. It was once among the most powerful cities in South America. It was home to the Incan emperor. In 1527, its citizens packed up their belongings and moved for unknown reasons. Scientists guess that smallpox, a disease brought by European explorers, was the cause of Machu Picchu’s downfall. Today, tourists from all over the world climb thousands of steep stone steps to view the ruins of this once great city. Yet another city that is no more was called Pompeii. This was one of the wealthiest cities of ancient Italy. This beautiful seaside city was a lively center of trade. However, a storm of lava, smoke, and ash from Mt. Vesuvius buried the city of Pompeii, putting an end to its prosperity. Scientists have studied the ruins of Pompeii, which led to new discoveries about ancient civilizations of Europe.

Humans have always built cities as centers for trade, business, and family life. Cities that have been lost provide information about the past, helping to inform our future. By studying lost cities, we can learn how to preserve our current cities.

【推荐1】PLAYA GRANDE, COSTA RICA? This resort town was long known for Leatherback Sea Turtle (棱皮龟) national Park, nightly turtle beach tours and even a sea turtle museum. However, on a beach where dozens of turtles used to nest on a given night, scientists spied only 32 leatherbacks all of last year.

With leatherbacks threatened with extinction (灭绝), Playa Grande’s turtle museum was abandoned three years ago and now sits among a sea of weeds. And the beachside ticket office for turtle tours was washed away by a high tide in September. “We do not promote that as a turtle tourism destination any more because we realize there are far too few turtles to please,” said Alvaro Fonseca, a park ranger (管理员).

Even before scientists found temperatures going up over the past decade, sea turtles were threatened by beach development, drift net fishing and Costa Ricans interest in eating turtle eggs. But climate change may cause the most serious harm to an animal that has lived in the Pacific for 150 million years.

Sea turtles are sensitive to numerous effects of warming. They feed on reefs, which are dying in hotter seas. They lay eggs on beaches that are being covered by rising seas and more violent waves.

More uniquely their gender (性别) is determined, not by genes but by the egg’s temperature during development. Small rises in beach temperatures can result in ail-female populations, obviously problematic for survival. If the sand around the eggs hits 30 degrees Celsius, the gender balance shits to females: at about 32 degrees they are all female. Above 34, you get boiled eggs.

On some nesting beaches, scientists are artificially cooling nests with shade or irrigation and trying to protect broader areas of coastal property from development to ensure that turtles have a place to nest as the seas rise.