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1.
Conservation biology: is this any way to save a species?   总被引:1,自引:0,他引:1  
Dalton R 《Nature》2005,436(7047):14-16
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Organic: is it the future of farming?   总被引:1,自引:0,他引:1  
Macilwain C 《Nature》2004,428(6985):792-793
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Pearson H 《Nature》2006,441(7092):398-401
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Krauss LM 《Nature》2004,431(7008):519-520
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Muscheler R  Joos F  Müller SA  Snowball I 《Nature》2005,436(7050):E3-4; discussion E4-5
To put global warming into context requires knowledge about past changes in solar activity and the role of the Sun in climate change. Solanki et al. propose that solar activity during recent decades was exceptionally high compared with that over the preceding 8,000 years. However, our extended analysis of the radiocarbon record reveals several periods during past centuries in which the strength of the magnetic field in the solar wind was similar to, or even higher than, that of today.  相似文献   

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Abbott A 《Nature》2006,443(7114):895
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What is 'dangerous' climate change?   总被引:11,自引:0,他引:11  
Schneider SH 《Nature》2001,411(6833):17-19
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Smith J 《Nature》2000,408(6810):293
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