Assuming that "the present rate of testingt lies somewhere between
5 and 10 megatons of fission per year, we can very crudely extrapolate
to the world-wide effecta of a nuclear war localized to the Northern
Hemisphere.
In areas not actually involved in near-in fallout for each
1000 megatons of fission one would multiply by from 100 to 200 the
first generation effacts, the possible increase in leukemia cages, and
the effect on average life span as estimated above to result from the
"present rate of testing".
Any Sr-90 effects would be ten to twenty
times those which might result from tests carried out prior to 1957.
This of course assumes a megaton to kiloton detonation ratio and pattern