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Matt Ridley’s Down to Earth II (Institute of Economic Affairs, £9, ISBN
0 255 36383 4) is a collection of newspaper articles casting a critical eye on
much of the accepted environmental creed. He deals with such issues as global
warming, acid rain, famine and BSE, all of them contentious and tangled in
dogma. At the least, the book could cause some healthy scepticism about the
doctrine that green is a synonym for righteousness.