decreasing prod-uction volumes and the possible breakdom of ttre organization ofIrorfd connerce and- conmunications. \.{hen there are serious problems in both these resFects, theT vou-Id soon have an inpact on everl'day conditions for nost FeoDle on the globe. 24l^ l''lost critical uould be the world food sulply: in many developinfi countries, famine is an ever-lrrpsent threat even under stablF and r..pr'Frrrl oonriil-.innc nnd a large and continuous international grains trade is needed to prevent starvation. 27/ In ad.dition, mod.ern agriculture increasingly uses input s from nany differeiT branches of industry. Among these are various kinds of tcols and machinery as well as pesticides and herbicides, but above all fertilizers from the chemical industry rn'hich - together with energy - are required. continuously and are absolutely necessary if 1and. resources are limited. 2l+2. Ttre wor}d food situation some time after the var could be crudely assessed. by recalling that wheat is the most irrrportant grain - and consequently foodstuff -in international- trade. The importance of the North American exports is we]1 knovn. During 1979, for instance, the United States alone exported about 37 rnil-lion tons of wheat, vhich is almost half the world trade in wheat. In addition the United States and Canada have about l+0 miftion tons of the wheat stocks and if they vere unavailable after a nuclear l,rar the fiorld food situation vould become disastrous in a very short time. This could mean that famine nould spread to hundreds of rrillions of people. )7 / T:iho f ^t-al nr^rl,r.tinn nf orqine in tha Tr^r] d ic enli'.r'1 ,-nt i^ eholrh ?65 kp !vvqr JJr vsqr v 4 her^ nFrsnr and vpar l.l}i'1 e the r.'rinimum subsistence l-eve1 is somelthe"e between 200 and 25A kS, o unfess ccnFlexrentary diet is availabl-e, Hovever, the annual production per capita is very different in different reqions, running from a