deglaciation

简明释义

英[diːˌɡleɪsiˈeɪʃən]美[diˌɡleɪʃiːˈeɪʃn]

n. 冰消；冰川的消失

英英释义

单词用法

同义词

反义词

例句

1.Little is known about climatic conditions in the tropics during the last glacial period and the deglaciation that followed.

人们对最后一次冰期热带的气候条件以及随后发生的冰川消退知之甚少。

2.Although change in carbon dioxide content closely follows change in temperature during periods of deglaciation, it apparently lags behind temperature during periods of cooling.

虽然在冰川消退期间二氧化碳含量的变化与温度的变化密切相关，但它显然滞后于冷却期间的温度。

3.More recent geologic studies documented deglaciation and the existence of ice-free areas throughout major coastal areas of British Columbia, Canada, by 13,000 years ago.

更多近期的地质研究证明了13000年前的冰川消退现象和整个加拿大不列颠哥伦比亚省主要沿海地区内无冰区的存在。

4.Little is known about climatic conditions in the tropics during the last glacial period and the deglaciation that followed.

人们对最后一次冰期热带的气候条件以及随后发生的冰川消退知之甚少。

5.Can deglaciation trigger earthquakes in N. America?

冰川消退能触发北美洲的地震吗？

6.The deglaciation of the Arctic region has significant implications for global sea levels.

北极地区的冰川消退对全球海平面有重大影响。

7.Researchers have documented the effects of deglaciation on local wildlife.

研究人员记录了冰川消退对当地野生动物的影响。

8.The process of deglaciation is accelerating due to climate change.

由于气候变化，冰川消退的过程正在加速。

9.During deglaciation, ecosystems can be dramatically altered.

在冰川消退期间，生态系统可能会发生剧烈变化。

10.Scientists study deglaciation to understand past climate patterns.

科学家研究冰川消退以了解过去的气候模式。

作文

The phenomenon of deglaciation refers to the process through which glaciers and ice sheets melt and retreat, leading to significant changes in the Earth's landscape and climate. This process has been occurring for thousands of years, particularly since the last Ice Age, which ended approximately 12,000 years ago. As temperatures rise due to natural cycles and human-induced climate change, the rate of deglaciation has accelerated, raising concerns among scientists and environmentalists alike.One of the most visible impacts of deglaciation is the transformation of landscapes. Glaciers carve valleys and shape mountains, creating stunning geographical features. However, as they melt, these features can become less distinct. For example, many once-majestic fjords are now experiencing rapid erosion and sedimentation due to the lack of glacial ice. This not only affects the physical environment but also disrupts local ecosystems that depend on the cold, stable conditions that glaciers provide.Furthermore, deglaciation has profound implications for sea levels. As glaciers and ice sheets melt, they contribute to rising ocean levels, which threaten coastal communities worldwide. According to scientists, if current trends continue, we could see a rise in sea levels of several feet by the end of the century, displacing millions of people and inundating low-lying areas. This situation demands urgent action to mitigate climate change and adapt to its effects.In addition to altering landscapes and sea levels, deglaciation also influences global weather patterns. The melting of polar ice affects ocean currents and atmospheric circulation, which can lead to extreme weather events. For instance, regions that were once temperate may experience harsher winters or hotter summers, impacting agriculture and water supply. Understanding these connections is crucial for predicting future climate scenarios and preparing for potential challenges.Moreover, the process of deglaciation releases large amounts of freshwater into the oceans, which can disrupt marine ecosystems. Many species rely on specific salinity levels, and significant changes can lead to shifts in fish populations and biodiversity. This not only affects marine life but also the fishing industries that depend on stable ecosystems for their livelihoods.To address the challenges posed by deglaciation, it is essential for nations to collaborate on climate action. This includes reducing greenhouse gas emissions, investing in renewable energy, and protecting natural carbon sinks such as forests and wetlands. Public awareness campaigns can also play a vital role in encouraging sustainable practices and promoting conservation efforts.In conclusion, deglaciation is a complex process with far-reaching consequences for our planet. It reshapes landscapes, raises sea levels, alters weather patterns, and disrupts ecosystems. By understanding the implications of deglaciation, we can better prepare for the challenges ahead and work towards a more sustainable future. Addressing this issue requires a collective effort from individuals, communities, and governments worldwide, as we strive to protect our environment for future generations.

“退冰”现象是指冰川和冰盖融化和后退的过程，这导致地球的地貌和气候发生显著变化。这个过程已经持续了数千年，尤其是自上一个冰河时代结束以来，大约在12,000年前。由于自然周期和人为气候变化导致的温度上升，退冰的速度加快，科学家和环保主义者对此表示担忧。退冰的一个最明显的影响是地貌的变化。冰川雕刻山谷和塑造山脉，创造出令人惊叹的地理特征。然而，随着它们的融化，这些特征可能变得不那么明显。例如，许多曾经雄伟的峡湾现在因缺乏冰川而经历快速侵蚀和沉积。这不仅影响物理环境，还破坏依赖于冰川提供的寒冷、稳定条件的地方生态系统。此外，退冰对海平面有深远的影响。随着冰川和冰盖的融化，它们导致海洋水位上升，威胁到全球沿海社区。根据科学家的说法，如果当前趋势继续，到本世纪末我们可能会看到海平面上升几英尺，迫使数百万人迁移，淹没低洼地区。这种情况迫切需要采取行动，以缓解气候变化并适应其影响。除了改变地貌和海平面外，退冰还影响全球天气模式。极地冰川的融化影响海洋洋流和大气环流，可能导致极端天气事件的发生。例如，以前温和的地区可能经历更严酷的冬季或更炎热的夏季，影响农业和水供应。理解这些联系对于预测未来的气候情景和准备潜在挑战至关重要。此外，退冰过程将大量淡水释放到海洋中，这可能破坏海洋生态系统。许多物种依赖特定的盐度水平，显著变化可能导致鱼类种群和生物多样性的变化。这不仅影响海洋生物，也影响依赖稳定生态系统谋生的渔业。为了解决退冰带来的挑战，各国必须在气候行动方面进行合作。这包括减少温室气体排放、投资可再生能源以及保护森林和湿地等自然碳汇。公众意识宣传活动也可以在鼓励可持续实践和促进保护工作中发挥重要作用。总之，退冰是一个复杂的过程，对我们的星球产生深远的影响。它重塑地貌、提高海平面、改变天气模式并破坏生态系统。通过理解退冰的影响，我们可以更好地为未来的挑战做好准备，并努力实现更可持续的未来。解决这个问题需要个人、社区和各国政府的共同努力，因为我们努力保护环境以供后代使用。