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( F, S0 u! m$ r3 N! x* j- @COVER Clouds pass over Kenya's Lake Magadi, where geologists are
1 B9 P0 w2 G9 Z7 ?$ v% vdrilling a core to gather detailed climate data from the ancient lake bed. Data ( o) A- E; z0 m. t; U- a. K
on past climates are vital for researchers seeking to understand how " K/ P' [/ }$ ?- W5 }+ R9 ?7 U
anthropogenic climate change will affect Earth?s ecosystems and species,
: {& u/ A7 R2 _ {& j0 m. O) Lincluding its effects on infectious diseases and food security. See the special
: b! h0 o* l9 d3 Ksection beginning on page 472. Photo:
! Y8 O) J# a" I? Martin Harvey/Alamy
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