[getsmart-l] This creates something of an ecological dilemma,

[John O'Gorman]

http://www.economist.com/world/international/displaystory.cfm?story_id=10199352&CFID=3659324&CFTOKEN=8e3a1821394d58c9-D499B746-B27C-BB00-012775CC623770E0 
Green.view

Moving on up
Nov 26th 2007
>From Economist.com

Conservationists have begun to broach a taboo


This creates something of an ecological dilemma, pitting conservationists who want to prevent extinctions against those who want to preserve native ecosystems. But if current climate trends continue, the latter group may find their position increasingly untenable. It may not be possible to breed in captivity every species that gets into difficulty. Places will have to be found for them. More fundamentally, most ecosystems will probably change. Many plants and animals will be able to move without our help, and when they do, it will not be an orderly march northwards as one cohesive unit. New communities will form. 
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