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日期:2019-03-08 04:05:02 作者:米纥甾 阅读:

Not too old to grow Earth’s oldest trees are experiencing a growth spurt. A tree ring study suggests the Great Basin bristlecone pines of the western US have grown faster in the past 50 years than they have in 3.7 millennia because of rising temperatures (Proceedings of the National Academy of Sciences, DOI: 10.1073/pnas.0903029106). …nor too big Something else has got bigger in recent years: