A Thousand Degrees Below Zero by Murray Leinster
 is a remarkable science fiction tale about
 a sudden cold spell on Earth.  The War to End All Wars has ended and 
the world has taken a deep breath and is trying to recover normal life 
in 1919. But a super Villan intent on ruling the entire world has other 
ideas. In his super fast helicopter (the Black Flyer) he sorties out to 
block the major ports and rivers of the world with icebergs made by his 
fiendishly clever devices until they admit his supremacy and kneel 
before his might. The might of nations are helpless before him but he 
does not count on our hero, a scientist specializing in low temperatures
 who was also a gunner in WWI. Teamed with a daring pilot flying the 
latest fastest bi plane in the army, they tangle with this brilliant but
 deranged person and might be able to bring him down. Do they? Read this
 fascinating tale and find out in this thrilling adventure where planes 
zoom at up to 200 mph!!!!  The paperback is HERE.