Antarctica (54 page)

 

G
ABRIELLE
W
ALKER
has a PhD in natural sciences from Cambridge University and has taught at both Cambridge and Princeton universities. She is Chief Scientist of strategic advisory firm Xynteo, a consultant to
New Scientist,
contributes frequently to BBC radio and writes for many newspapers and magazines. In 2009 and 2011 respectively she presented the
Planet Earth Under Threat
series and
Thin Air
for BBC Radio 4, and in 2011 she presented
The Secret Life of Ice
for BBC4. She lives in London.