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標題: Rate of sea-level rise 'steeper' [打印本頁]

作者: kao1306    時間: 2015-1-15 09:01
標題: Rate of sea-level rise 'steeper'

[size=1.077em]The rate at which the global oceans have risen in the past two decades is more significant than previously recognised, say US-based scientists.

[size=1.077em]Their reassessment of tide gauge data from 1900-1990 found that the world's seas went up more slowly than earlier estimates - by about 1.2mm per year.

[size=1.077em]But this makes the 3mm per year tracked by satellites since 1990 a much bigger trend change as a consequence.

[size=1.077em]It could mean some projections for future rises having to be revisited.

http://www.bbc.com/news/science-environment-30816143






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