标题: 《The Precipice 》作者:- Ben Bova【EPUB】 [打印本页]

作者: zaq    时间: 2014-4-25 07:46
标题: 《The Precipice 》作者:- Ben Bova【EPUB】
And? with? special? thanks? to? Jeff? Mitchell,? a? real? rocket? scientist;? to? Chris? Fountain,? metallurgist? and optimist;? and? to? Lee? Modesitt,? an? economist? with? imagination;? true? friends? all. ? The? modern? tropics? and? their? fringes? support? more? than? half? the? world's? population,? numbered? in? the billions.? Many? already? live? at? the? fringe? of? survival,? dependent? on? food? aid? transported? from? the? grain? belts of? more? temperate? zones.? Even? a? small? climatic? shift...? would? physically? compress? the? geographical? limits for? cereal? cropping....? I? leave? it? to? your? imagination? what? such? a? pace? of? climate? cha





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