Earth Has Lost More Than 12 Trillion Tons of Ice in 47 Years

地球47年间失去超过12万亿吨冰

Dìqiú sìshíqī nián jiān shīqù chāoguò shí'èr wàn yì dūn bīng

Scientists say Earth lost more than 12 trillion tons of ice in 47 years. This raised global sea levels by about 31.4 millimeters. Most ice loss came from glaciers flowing faster into the ocean, not from surface melting. Ice loss has accelerated since the 1990s. Scientists warn that coastal floods and erosion will become more serious.

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Zuìjìn, yí xiàng yánjiū xiǎnshì, dìqiú zài sìshíqī nián lǐ shīqù le chāoguò shí'èr wàn yì dūn bīng. Zhè xiàng yánjiū yóu wǔshíbā wèi kēxuéjiā wánchéng. Jù kēxuéjiā tǒngjì, tāmen shǐyòng le èrshíqī gè wèixīng rènwu de shùjù, jìnxíng le sìshí'èr cì dúlì de bīnggài diàochá.

最近，一项研究显示，地球在47年里失去了超过12万亿吨冰。这项研究由58位科学家完成。据科学家统计，他们使用了27个卫星任务的数据，进行了42次独立的冰盖调查。

Recently, a study shows that Earth has lost more than 12 trillion tons of ice in 47 years. This study was completed by 58 scientists. According to the scientists' statistics, they used data from 27 satellite missions and conducted 42 independent ice sheet surveys.

Zhè shì mùqián zuì kěkào de chángqī bīnggài biànhuà jìlù. Yóuyú hǎiyáng xīshōu le duōyú de rèliàng, yīncǐ hǎishuǐ biànnuǎn, bīngchuān liúdòng jiāsù. Cóng yī jiǔ qī jiǔ nián dào xiànzài, quánqiú hǎipíngmiàn shàngshēng le dàyuē sānshíyī diǎn sì háomǐ.

这是目前最可靠的长期冰盖变化记录。由于海洋吸收了多余的热量，因此海水变暖，冰川流动加速。从1979年到现在，全球海平面上升了大约31.4毫米。

This is the most reliable long-term record of ice sheet changes so far. Because the ocean absorbed excess heat, therefore seawater warmed and glacier flow accelerated. From 1979 to now, global sea levels have risen by about 31.4 millimeters.