On Thin Ice: The Changing World of the Polar Bear
- 作者
- 出版社 Knopf Doubleday Publishing Group
- 出版时间 2010年12月
- ISBN 9780307454645
- 定价 141.60
内容简介
Polarbears—fierceandmajestic—havecaptivatedusforcenturies.Fearedbyexplorers,reveredbytheInuit,andbelovedbyzoogoerseverywhere,theyareasymbolfortheharshbeautyandmusculargraceoftheArctic.Butasglobalwarmingthreatenstheicecaps’integrity,thepolarbearhasalsocometosymbolizetheenvironmentalperilthathasarisenduetoharmfulhumanpractices.Inthepasttwentyyearsalone,theworldpopulationofpolarbearshasshrunkbyhalf.Todaytheynumberjust22,000.Urgentandstirring,OnThinIceisbothacelebrationandarallyingcryonbehalfofoneofearth’sgreatestnaturaltreasures.,
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