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能源 · Energy · · 642 words · B1-B2

The Hidden Cost of Our Modern World: The Global Sand Crisis

As cities grow and sea levels rise, the world is running out of the most important material we often ignore.

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Summary · 摘要

The world is using sand at an alarming rate of 50 billion tonnes every year for construction and technology. A new UN report warns that we are taking sand faster than nature can replace it. This process damages vital ecosystems like coral reefs and hurts local fishing communities. While some countries use sand for land reclamation to fight rising sea levels, this often causes permanent environmental harm. Experts now call for better planning and stricter rules to manage this essential resource.

全球每年為了建築與科技需求,正以驚人的速度消耗五百億噸的沙子。聯合國的一份新報告警告,我們開採沙子的速度已超過自然界的補充能力。此過程破壞了珊瑚礁等重要的生態系統,並重創了當地的漁業社區。儘管部分國家利用填海造陸來對抗海平面上升,但這往往造成永久性的環境損害。專家呼籲,必須採取更完善的規劃與更嚴格的規範,以管理這項不可或缺的資源。

閱讀模式 ·

When we look at our modern cities, we see concrete buildings, glass windows, and roads. Most of us do not think about what these things are made of. The answer is sand. It is the most used solid material on Earth, yet we rarely talk about it. According to The Guardian, the world uses 50 billion tonnes of sand every year. This demand is growing, but a new report from the United Nations Environment Programme (UNEP) warns that we are using sand much faster than nature can replace it. This is creating a global crisis that threatens our environment and our future.

Sand is not just for building. It is a natural hero that protects our planet. It acts as a shield against rising sea levels, helps filter our water, and provides a home for many animals. Pascal Peduzzi, a director at UNEP, explained that sand is essential for the natural services we depend on. When we remove sand from beaches or the bottom of the ocean, we lose this natural protection. This makes coastal areas more vulnerable to storms and rising water levels caused by climate change.

Many countries are now using land reclamation—a process of creating new land from the sea—to solve problems like overcrowding. The Maldives is a clear example of this. The capital city, Malé, is very crowded and faces the risk of disappearing as sea levels rise. To create more space, the government started a project in the Gulhifalhu lagoon. They used millions of cubic metres of sand to build up the land. However, The Guardian reports that this project caused permanent damage to 200 hectares of coral reefs and sea life. Even though environmental experts warned about the damage, the project continued because the contracts were already signed.

This problem is happening all over the world. In the Philippines, a large airport project required moving huge amounts of sand from Manila Bay. This destroyed the area where fish lived, and local fishing communities found that the fish did not return. Similarly, in South Sulawesi, Indonesia, dredging—the process of digging up sand from the sea floor—for a construction project caused the income of local fishermen to drop by 80 percent. These stories show that while we gain new land for buildings, we often lose the natural resources that people need to survive.

According to the UNEP report, about half of the companies that dig for sand are working in protected marine areas. This is a major concern because these areas are supposed to be safe for nature. The report notes that land reclamation changes the environment forever, destroying plants and animals and causing the coast to wash away over time. This creates a difficult choice: do we use sand to build homes and protect cities, or do we leave it in place to protect the natural world?

So, what is the solution? Experts suggest that we need a complete change in how we manage sand. Planners need better data and maps to understand which areas are most important for the environment. They also need to be more open about their plans and follow environmental rules more strictly. As the world continues to develop, we must find a way to balance our need for growth with the need to protect the planet. If we do not, we may find that the cost of our modern world is simply too high to pay.

選擇題練習 · Quiz

4

  1. 細節 Detail

    1.What was the specific environmental consequence of the land reclamation project in the Maldives mentioned in the text?

  2. 推論 Inference

    2.Based on the information provided, why might government projects involving sand continue even after environmental warnings?

  3. 單字情境 Vocabulary

    3.In the second paragraph, the author describes sand as a 'natural hero' that acts as a 'shield.' What does the word 'shield' imply in this context?

  4. 主旨 Main Idea

    4.What is the central message of the article regarding the global use of sand?

請回答全部 4 題後再提交

易誤解詞彙 · Words to watch

這些字字面意思和文中用法不同,或是不常見的詞性/片語。

build up phrasal verb
To increase the size, amount, or strength of something, often by adding layers or parts.
增強、擴大、堆積(在此指透過填沙來增加土地面積)。
💡 常見作名詞(build-up 累積),這裡作動詞片語。文中:They used millions of cubic metres of sand to build up the land.
wash away phrasal verb
To be carried away or destroyed by the movement of water.
被水沖走、流失。
💡 此處描述海岸線因環境改變而逐漸消失,而非單純的清潔動作。文中:The report notes that land reclamation changes the environment forever, destroying plants and animals and causing the coast to wash away over time.
drop verb
To decrease or fall in amount or level.
下降、減少。
💡 常見作名詞(水滴)或動詞(掉落),這裡指數據上的減少。文中:dredging—the process of digging up sand from the sea floor—for a construction project caused the income of local fishermen to drop by 80 percent.

原始來源 · Sources

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