differing white and red wine countries.

[culinart]

IS this true or not?

Someone has told me that when making red wine, the grapes need a warm climate to thrive in and with white wine it requires a more colder climate. So when choosing your wine selection (red or white), it would make more sense that the quality of white wines would be greater from a colder climate region than it would be from say a country like chile (which has warmer climates all year round) So in other words , white wine from italy, germany or france would be better than chile, argentina or south africa.
Would u say that is an off statement?

I mean does a countries climate determine whether they will be great white wine producers or great red wine producers?? When u think of red wine, what countries always produce real good quality ones and vice versa for white wines>>???