Blowing hot and cold

In the 1970s some climatologists were suggesting that a new ice age was on
the way. Now the focus is on global warming. In Is the Temperature
Rising?, S. George Philander examines the question historically,
meteorologically, chemically and every other way. At the end of this
well-written survey, you will know every detail of the subject, but you won’t
know whether global warming is happening or not. Still, neither does anyone
else. Now in paperback from Princeton University Press, £10.50, ISBN
0691050341.