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2 z4 @$ d$ i5 MCOVER Clouds pass over Kenya's Lake Magadi, where geologists are
: J Z% x) k1 Jdrilling a core to gather detailed climate data from the ancient lake bed. Data
! W6 e3 Y( X3 f# i) O8 don past climates are vital for researchers seeking to understand how
4 G8 {" t3 x3 ^7 f% w% Lanthropogenic climate change will affect Earth?s ecosystems and species, ) {# U+ d7 \1 c9 V
including its effects on infectious diseases and food security. See the special
. K' Y0 ?8 H# a+ x! ysection beginning on page 472. Photo:
. N" i2 K: k% ^" y/ X? Martin Harvey/Alamy
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发表于 2013-8-2 09:56
