1. Biologists’ alarm bells ring louder
Nigel Williams 
Current Biology 
Volume 15, Issue 22, Pages R902-R903 (November 2005)
DOI: /j.cub
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2. Signed up: Paul Martin, the prime minister of Canada, will head new talks on greenhouse gases. (Picture: EMPICS.)
Current Biology  , R902-R903DOI: ( /j.cub )
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3. Enclosure: Experiments inside looking at the effect of changes in greenhouse gas concentrations that suggest possible increases in productivity may have failed to reveal what might be the case outdoors. (Picture: Maximilian Stock Ltd/Science Photo Library.)
Current Biology  , R902-R903DOI: ( /j.cub )
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