Published online by Cambridge University Press: 22 May 2009
In these closing decades of the twentieth century modern man is a paradox of extremes. He possesses untold knowledge and wealth, but these have brought no universal end to the indignity of poverty and ignorance. He has conquered space, but on earth he is unable to overcome conflicts and inequities. His mastery of science and technology gives him unprecedented power, but his living world is threatened as at no time since his planetary home first gave him warmth and shelter.